legalization of marijuana pros and cons essay

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The Evidence—and Lack Thereof—About Cannabis

Research is still needed on cannabis’s risks and benefits. 

Lindsay Smith Rogers

Although the use and possession of cannabis is illegal under federal law, medicinal and recreational cannabis use has become increasingly widespread.

Thirty-eight states and Washington, D.C., have legalized medical cannabis, while 23 states and D.C. have legalized recreational use. Cannabis legalization has benefits, such as removing the product from the illegal market so it can be taxed and regulated, but science is still trying to catch up as social norms evolve and different products become available. 

In this Q&A, adapted from the August 25 episode of Public Health On Call , Lindsay Smith Rogers talks with Johannes Thrul, PhD, MS , associate professor of Mental Health , about cannabis as medicine, potential risks involved with its use, and what research is showing about its safety and efficacy. 

Do you think medicinal cannabis paved the way for legalization of recreational use?

The momentum has been clear for a few years now. California was the first to legalize it for medical reasons [in 1996]. Washington and Colorado were the first states to legalize recreational use back in 2012. You see one state after another changing their laws, and over time, you see a change in social norms. It's clear from the national surveys that people are becoming more and more in favor of cannabis legalization. That started with medical use, and has now continued into recreational use.

But there is a murky differentiation between medical and recreational cannabis. I think a lot of people are using cannabis to self-medicate. It's not like a medication you get prescribed for a very narrow symptom or a specific disease. Anyone with a medical cannabis prescription, or who meets the age limit for recreational cannabis, can purchase it. Then what they use it for is really all over the place—maybe because it makes them feel good, or because it helps them deal with certain symptoms, diseases, and disorders.

Does cannabis have viable medicinal uses?

The evidence is mixed at this point. There hasn’t been a lot of funding going into testing cannabis in a rigorous way. There is more evidence for certain indications than for others, like CBD for seizures—one of the first indications that cannabis was approved for. And THC has been used effectively for things like nausea and appetite for people with cancer.

There are other indications where the evidence is a lot more mixed. For example, pain—one of the main reasons that people report for using cannabis. When we talk to patients, they say cannabis improved their quality of life. In the big studies that have been done so far, there are some indications from animal models that cannabis might help [with pain]. When we look at human studies, it's very much a mixed bag. 

And, when we say cannabis, in a way it's a misnomer because cannabis is so many things. We have different cannabinoids and different concentrations of different cannabinoids. The main cannabinoids that are being studied are THC and CBD, but there are dozens of other minor cannabinoids and terpenes in cannabis products, all of varying concentrations. And then you also have a lot of different routes of administration available. You can smoke, vape, take edibles, use tinctures and topicals. When you think about the explosion of all of the different combinations of different products and different routes of administration, it tells you how complicated it gets to study this in a rigorous way. You almost need a randomized trial for every single one of those and then for every single indication.

What do we know about the risks of marijuana use?  

Cannabis use disorder is a legitimate disorder in the DSM. There are, unfortunately, a lot of people who develop a problematic use of cannabis. We know there are risks for mental health consequences. The evidence is probably the strongest that if you have a family history of psychosis or schizophrenia, using cannabis early in adolescence is not the best idea. We know cannabis can trigger psychotic symptoms and potentially longer lasting problems with psychosis and schizophrenia. 

It is hard to study, because you also don't know if people are medicating early negative symptoms of schizophrenia. They wouldn't necessarily have a diagnosis yet, but maybe cannabis helps them to deal with negative symptoms, and then they develop psychosis. There is also some evidence that there could be something going on with the impact of cannabis on the developing brain that could prime you to be at greater risk of using other substances later down the road, or finding the use of other substances more reinforcing. 

What benefits do you see to legalization?

When we look at the public health landscape and the effect of legislation, in this case legalization, one of the big benefits is taking cannabis out of the underground illegal market. Taking cannabis out of that particular space is a great idea. You're taking it out of the illegal market and giving it to legitimate businesses where there is going to be oversight and testing of products, so you know what you're getting. And these products undergo quality control and are labeled. Those labels so far are a bit variable, but at least we're getting there. If you're picking up cannabis at the street corner, you have no idea what's in it. 

And we know that drug laws in general have been used to criminalize communities of color and minorities. Legalizing cannabis [can help] reduce the overpolicing of these populations.

What big questions about cannabis would you most like to see answered?

We know there are certain, most-often-mentioned conditions that people are already using medical cannabis for: pain, insomnia, anxiety, and PTSD. We really need to improve the evidence base for those. I think clinical trials for different cannabis products for those conditions are warranted.

Another question is, now that the states are getting more tax revenue from cannabis sales, what are they doing with that money? If you look at tobacco legislation, for example, certain states have required that those funds get used for research on those particular issues. To me, that would be a very good use of the tax revenue that is now coming in. We know, for example, that there’s a lot more tax revenue now that Maryland has legalized recreational use. Maryland could really step up here and help provide some of that evidence.

Are there studies looking into the risks you mentioned?

Large national studies are done every year or every other year to collect data, so we already have a pretty good sense of the prevalence of cannabis use disorder. Obviously, we'll keep tracking that to see if those numbers increase, for example, in states that are legalizing. But, you wouldn't necessarily expect to see an uptick in cannabis use disorder a month after legalization. The evidence from states that have legalized it has not demonstrated that we might all of a sudden see an increase in psychosis or in cannabis use disorder. This happens slowly over time with a change in social norms and availability, and potentially also with a change in marketing. And, with increasing use of an addictive substance, you will see over time a potential increase in problematic use and then also an increase in use disorder.

If you're interested in seeing if cannabis is right for you, is this something you can talk to your doctor about?

I think your mileage may vary there with how much your doctor is comfortable and knows about it. It's still relatively fringe. That will very much depend on who you talk to. But I think as providers and professionals, everybody needs to learn more about this, because patients are going to ask no matter what.

Lindsay Smith Rogers, MA, is the producer of the Public Health On Call podcast , an editor for Expert Insights , and the director of content strategy for the Johns Hopkins Bloomberg School of Public Health.

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Pros and Cons of Legalizing Marijuana

The pros of legalizing marijuana, the cons of legalizing marijuana.

• Scientific Evidence

The pros and cons of legalizing marijuana are still being debated. Today, 37 U.S. states allow for the medical use of marijuana. A growing number allow recreational use.

However, as a Schedule I controlled substance, marijuana is illegal under federal law. This Drug Enforcement Administration designation means that marijuana is considered to have "no currently accepted medical use and a high potential for abuse." It also limits medical studies into the potential benefits of cannabis .

This article explains the pros and cons of legalizing marijuana, as some have argued them.

Americans overwhelmingly support the legalization of marijuana. In fact, according to the Pew Research Center, 88% of Americans support legalizing marijuana. Of those, 59% say it should be legal for medical and recreational use and 30% say it should be legal for medical reasons only.

Several possible health benefits of medical marijuana have been proposed:

• Nausea : Marijuana is effective in relieving nausea and vomiting. Studies have shown that cannabis can decrease nausea caused by chemotherapy and almost eliminate vomiting.
• Spasticity : Marijuana can relieve pain and spasticity associated with multiple sclerosis.
• Appetite : Marijuana can help treat appetite loss associated with conditions like  HIV/AIDS and certain types of cancers.
• Chronic pain : Marijuana can relieve certain types of chronic pain, including neuropathic pain, which is caused by nerve damage.

And arguments in favor of using medical marijuana include:

• It's safer : Marijuana is safer than some other medications prescribed to treat pain. For example, some people may use it instead of opioids for pain management. Opioids are highly addictive and are typically not recommended for long-term use in treating chronic pain.
• You can use it in many ways : You do not need to smoke cannabis for its benefits. Products such as cannabidiol oil (CBD), topical pain relief treatments, edibles, and other non-smoking applications are now available.
• You don't need to get high : As studies continue, researchers are finding benefits in the individual compounds in cannabis. When these chemicals are isolated—such as CBD has been—they can offer treatment options without the "high" produced by the compound commonly known as THC.
• It's natural : People have used marijuana for centuries as a natural medicinal agent with good results.

Recreational Marijuana

Marijuana is legal for recreational use in 20 states and the District of Columbia. In 20 other states, marijuana has been decriminalized. This means there are no criminal penalties in these states for minor marijuana-related offenses like possession of small amounts or cultivation for personal use.

Those who oppose the legalization of marijuana point to the health risks of the drug, including:

• Memory issues : Frequent marijuana use may seriously affect your short-term memory.
• Cognition problems : Frequent use can impair your cognitive (thinking) abilities.
• Lung damage : Smoking anything, whether it's tobacco or marijuana, can damage your lung tissue. In addition, smoking marijuana could increase the risk of lung cancer .
• Abuse : Marijuana carries a risk of abuse and addiction.
• Accidents : Marijuana use impairs driving skills and increases the risk for car collisions.

The fact that the federal government groups it in the same category as drugs like heroin, LSD, and ecstasy is reason enough to keep it illegal, some say. As Schedule I drugs are defined by having no accepted value, legalization could give users the wrong impression about where research on the drug stands.

Scientific Evidence Remains Limited

In the past, clinical trials to to determine if marijuana is effective in treating certain conditions have been restrictive and limited. However, as medical marijuana becomes more common throughout the world, researchers are doing more studies.

Expert reviews of current research continue to say more studies are needed. In addition, many hurdles involve controlling the quality and dosing of cannabis with what is legally available to researchers.

One review of research noted that the long-term effects of cannabis are still unknown. Without more research into dosage and adverse effects, scientific evidence of risks and therapeutic effects remains soft.

Researchers need to evaluate marijuana using the same standards as other medications to understand whether it is valuable for managing any conditions.

Until the federal government downgrades marijuana from a Schedule I drug, widespread clinical trials are unlikely to happen in the United States.

Medical marijuana is increasingly available in the U.S. It is often used to treat chronic pain, muscle spasms, and nausea and vomiting, and to increase appetite. However, it can affect thinking and memory, increase the risk of accidents, and smoking it may harm the lungs and lead to cancer.

More studies are needed to understand the benefits of medical marijuana. However, unless the federal government removes it as a Schedule I controlled substance, research, access, and legality will remain complicated.

A Word From Verywell

There are both benefits and risks to medical marijuana. If you're considering using marijuana medicinally, don't be afraid to talk to your doctor about it. They can help you determine whether marijuana may be the proper treatment for you.

Medical marijuana remains controversial, but it is gaining traction as a legitimate recommendation for various symptoms. Even though many states have legalized cannabis for medicinal purposes and recreational use, more research is needed.

National Conference of State Legislatures. State medical marijuana laws .

United States Drug Enforcement Administration. Drug scheduling .

Pew Research Center. Americans overwhelmingly say marijuana should be legal for recreational or medical use .

Badowski ME. A review of oral cannabinoids and medical marijuana for the treatment of chemotherapy-induced nausea and vomiting: a focus on pharmacokinetic variability and pharmacodynamics . Cancer Chemother Pharmacol. 2017;80(3):441-449. doi:10.1007/s00280-017-3387-5

Corey-Bloom J, Wolfson T, Gamst A, et al. Smoked cannabis for spasticity in multiple sclerosis: a randomized, placebo-controlled trial .  CMAJ . 2012;184(10):1143-1150. doi:10.1503/cmaj.110837

American Cancer Society. Marijuana and Cancer .

Hill KP. Medical marijuana for treatment of chronic pain and other medical and psychiatric problems: A clinical review . JAMA. 2015;313(24):2474-83. doi:10.1001/jama.2015.6199

Choo EK, Feldstein Ewing SW, Lovejoy TI. Opioids out, cannabis in: Negotiating the unknowns in patient care for chronic pain . JAMA . 2016;316(17):1763-1764. doi:10.1001/jama.2016.13677

Corroon J, Sexton M, Bradley R. Indications and administration practices amongst medical cannabis healthcare providers: a cross-sectional survey . BMC Fam Pract. 2019;20(1):174. doi:10.1186/s12875-019-1059-8

Morales P, Reggio PH, Jagerovic N. An overview on medicinal chemistry of synthetic and natural derivatives of cannabidiol . Front Pharmacol . 2017;8:422. doi:10.3389/fphar.2017.00422

The Council of State Governments. State approaches to marijuana policy .

Harvard Health Publishing, Harvard Medical School. The Effects of Marijuana on your Memory .

Ghasemiesfe M, Barrow B, Leonard S, Keyhani S, Korenstein D. Association between marijuana use and risk of cancer: a systematic review and meta-analysis . JAMA Netw Open. 2019;2(11):e1916318. doi:10.1001/jamanetworkopen.2019.16318

Preuss U, Huestis M, Schneider M et al. Cannabis use and car crashes: A review . Front Psychiatry . 2021;12. doi:10.3389/fpsyt.2021.643315

Deshpande A, Mailis-Gagnon A, Zoheiry N, Lakha SF. Efficacy and adverse effects of medical marijuana for chronic noncancer pain: Systematic review of randomized controlled trials . Can Fam Physician. 2015;61(8):e372-81.

Hill KP, Palastro MD, Johnson B, Ditre JW. Cannabis and pain: a clinical review .  Cannabis Cannabinoid Res . 2017;2(1):96-104. doi:10.1089/can.2017.0017

Maida V, Daeninck PJ. A user's guide to cannabinoid therapies in oncology . Curr Oncol. 2016;23(6):398-406. doi:10.3747/co.23.3487

Meier MH, Caspi A, Cerdá M, et al. Associations between cannabis use and physical health problems in early midlife: A longitudinal comparison of persistent cannabis vs tobacco users. JAMA Psychiatry. 2016;73(7):731-40. doi:10.1001/jamapsychiatry.2016.0637

By Angela Morrow, RN Angela Morrow, RN, BSN, CHPN, is a certified hospice and palliative care nurse.

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Legalizing Marijuana: Pros and Cons

To the Editor:

Much of the country — with The New York Times regrettably in the vanguard — is advocating the reckless addition of a third drug, marijuana, to two drugs currently legal for adults: alcohol and tobacco. These two legal drugs are the leading causes of preventable illness.

The legal status of a drug has dramatic impact on its use. In the last 30 days, 52 percent of Americans 12 and older used alcohol, 27 percent used tobacco and only 7 percent used marijuana. The dramatically lower level of marijuana use reflects its illegal status, not its appeal. Why is it in our nation’s interest to see marijuana use climb? Since when is smoking a program that we promote?

The best policy to protect public health is one that reduces, not increases, marijuana use. There are plenty of ways to achieve this goal, including a strong public education effort focused on the negative health effects of marijuana.

There are reasons why employers, including the United States government, prohibit marijuana use in the workplace. There are reasons why marijuana emergency room admissions are reported at the rate of 1,250 a day and 455,000 a year, and why highway crashes double for marijuana users.

We cannot ignore the negative effects that legalization would have on under-age use and addiction, highway safety, treatment costs, mental health problems, emergency room admissions, workplace accidents and productivity, and personal health.

PETER BENSINGER ROBERT L. DuPONT Chicago, July 30, 2014

Mr. Bensinger was administrator of the Drug Enforcement Administration from 1976 to 1981. Mr. DuPont, president of the Institute for Behavior and Health, was director of the National Institute on Drug Abuse from 1973 to 1978. They are co-founders of Bensinger, DuPont & Associates, which provides employee assistance program, gambling helpline and drug-testing services.

I applaud the editorial board for highlighting the disastrous social costs of marijuana prohibition and for taking a courageous position in calling for national legalization. I became a mother in 1971, the same year that President Nixon declared the “war on drugs.” Twenty years later my son was arrested for marijuana possession, which began a decade of cycling through the criminal justice system for nonviolent drug offenses.

The outlawing of marijuana translated into a war that has been waged against families like mine for over four decades. Prohibition has robbed children of their futures, while building a huge prison-industrial complex. It has caused countless casualties, wasted taxpayer dollars, promoted discrimination and taken away basic human liberties.

Mothers were instrumental in ending alcohol prohibition in the 1930s, and once again moms are uniting to end marijuana prohibition for the sake of our children and future generations.

GRETCHEN BURNS BERGMAN Spring Valley, Calif., July 28, 2014

The writer is co-founder and executive director of a New PATH (Parents for Addiction Treatment and Healing).

I am concerned by the editorial board’s stance in favor of marijuana legalization. It has been only six months since retail marijuana sales began in Colorado, and just weeks since the rollout in Washington State. A robust, objective analysis of outcomes in these two states is the only way to determine the best policy on this issue, but for now, it is too early to make a sound judgment.

What we do know is that marijuana is harmful, particularly for the still-developing adolescent brain. As we’ve seen with alcohol and tobacco, imposing a minimum age will probably not be enough to prevent a spike in teenage use and addiction.

Considering this likely consequence, not to mention the economic burden of regulating the drug and treating new problematic users, we may find that the societal costs of legalization outweigh the benefits. However, if we make pronouncements before we see the research, we’re jumping the gun. Let’s let the facts speak for themselves.

HOWARD P. MEITINER New York, July 28, 2014

The writer is president and chief executive of Phoenix House, a drug and alcohol rehabilitation center.

As your July 27 editorial “ Repeal Prohibition, Again ” says: “There are legitimate concerns about marijuana on the development of adolescent brains. For that reason, we advocate the prohibition of sales to people under 21.”

Our concern about legalization is its effect on kids. Society may not do much better at enforcing this restriction on sale and marketing of marijuana to kids than we have with alcohol and tobacco. Research shows that use of any of these drugs in adolescence — especially early adolescence — significantly heightens risks of substance use disorders in later life.

We need to provide a much better prevention and treatment infrastructure, which expanded access to marijuana and increasing teenage use will require. That begins with limiting marijuana marketing that kids will be exposed to, and equipping parents with information about the very real health risks of early use.

These are not details to be sorted later, but vital considerations. These are the considerations that matter most to us, and to most parents, including — research shows — those favoring legalization.

STEVE PASIERB President and Chief Executive Partnership for Drug-Free Kids New York, July 29, 2014

The letter from Peter Bensinger and Robert L. DuPont has been revised to add their company affiliation to the identification line.

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Legalization, Decriminalization & Medicinal Use of Cannabis: A Scientific and Public Health Perspective

Empirical and clinical studies clearly demonstrate significant adverse effects of cannabis smoking on physical and mental health as well as its interference with social and occupational functioning. These negative data far outweigh a few documented benefits for a limited set of medical indications, for which safe and effective alternative treatments are readily available. If there is any medical role for cannabinoid drugs, it lies with chemically defined compounds, not with unprocessed cannabis plant. Legalization or medical use of smoked cannabis is likely to impose significant public health risks, including an increased risk of schizophrenia, psychosis, and other forms of substance use disorders.

Introduction

In recent years, there has been a strong pressure on state legislatures across the US to legalize or decriminalize use and possession of specified amounts of cannabis and/or to pass laws that allow smoking of crude cannabis plant (also known as marijuana, weed, Mary Jane, pot, reefers, ganja, joint and grass) for prescribed medical purposes (so called “medical marijuana”). Advocacy groups claim that smoking cannabis is a safe and effective treatment for various psychological and medical conditions, ranging from stress and anxiety to Alzheimer’s dementia and Parkinson’s disease, even though cannabis is not approved for such use by the Food and Drug Administration (FDA).

Legalization of cannabis is the process of removing all legal prohibitions against it. Cannabis would then be available to the adult general population for purchase and use at will, similar to tobacco and alcohol. Decriminalization is the act of removing criminal sanctions against an act, article, or behavior. Decriminalization of cannabis means it would remain illegal, but the legal system would not prosecute a person for possession under a specified amount. Instead, the penalties would range from no penalties at all, civil fines, drug education, or drug treatment.

No state has legalized cannabis thus far. It remains a US federally-controlled substance, which makes possession and distribution illegal. However, at the time of this writing, 26 states in the US have passed either medical cannabis laws, cannabis decriminalization laws, or both. See Table 1 . A major concern of this commentary is that both the medicinal use of smoked cannabis plant and legalization/decriminalization of cannabis are being advocated in a way that circumvents the normal testing and regulatory processes by the FDA that is otherwise required for all drugs marketed for human use in the US. By circumventing this process, advocacy groups put state legislatures and/or voters in the position to decide on proposals with a certain impact on public health and medical treatment without necessarily being qualified to understand the pertinent scientific evidence.

US Cannabis Use Legislated into Law without FDA Approval

Taking advantage of the obscure legal status of cannabis (i.e., federally banned illicit drug but approved by local governments for medical and/or recreational purposes), businesses involving sales of cannabis are flourishing and even stock-market investments are available. For example, CannabisInvestments.com provides information on ways one can invest in hemp-related and medical marijuana products and companies. These business interest groups are ratcheting pressure on state legislatures to decriminalize or medicalize cannabis, counting on support of millions of addicted users and politicians looking for re-election votes and unaware of the dangers of such a legislative act.

History and Legal Status of Cannabis

Historically, cannabis has been used in various cultures and populations as indigenous therapy for a range of medical ailments (e.g., fever, insomnia, cachexia, headache, constipation, rheumatic pain) and diseases (e.g., venereal disease, malaria). Due to its presumed medical benefits, cannabis was recognized as an official, licit drug and listed in the U.S. Pharmacopoeia in 1850. Recreational use of cannabis surged in the 1930s during the Prohibition Era. In 1937, the Marijuana Tax Act effectively thwarted all cannabis use without criminalizing its possession or use. In 1970, the Controlled Substances Act classified cannabis as schedule I illicit drugs, the most restrictive category, and made possession a federal crime.

Reefer Madness is a well-known 1936 American propaganda exploitation film revolving around the melodramatic events that ensue when high school students are lured by pushers to try “marijuana” — from a hit and run accident, to manslaughter, suicide, attempted rape, and descent into madness.

The Drug Enforcement Agency (DEA), which administers the Controlled Substances Act, continues to support the Schedule I assignment (and FDA concurred) noting that cannabis meets the three criteria for such placement under 21 U.S.C. 812(b):

• high potential for abuse;
• no currently accepted medical use in the US; and
• lack of accepted safety for use under medical supervision.

A past evaluation by several Department of Health and Human Services (HHS) agencies, including FDA, Substance Abuse and Mental Health Services Administration (SAMHSA) and National Institute for Drug Abuse (NIDA), concluded that no sound scientific studies supported medical use of marijuana and no animal or human data supported the safety or efficacy of marijuana for general medical use. 1

Popular Perception of Cannabis Use

In the public debate, cannabis has been considered a relatively benign recreational drug in comparison to opiates, stimulants, even alcohol. The favorable popular perception of cannabis presumably reflects the absence of dramatic physical signs of intoxication or withdrawal. Incidentally, cessation of cannabis use does cause withdrawal, but the severity is masked by the gradual release of delta 9-tetrahydrocannabinol (THC), the major psychoactive ingredient in cannabis, from fat tissue (adipocytes) where it accumulates during chronic use. The process is not unlike the tapering of medication during detoxification.

The general public has not been adequately informed about recent scientific findings demonstrating major adverse effects of smoking cannabis on physical and especially mental health, the latter varying in range from cognitive dulling, brief psychotic experiences, to long-term addiction and chronic psychosis. 2 , 3

Epidemiology of Cannabis Use and Addiction

Cannabis (here referring to smoking of cannabis plants) is the most commonly used illicit drug in the US. Data from The National Survey on Drug Use and Health 4 , 5 indicate that 44% of males and 35% of females have used marijuana at least once in their life time. More recent studies suggest that regular use of marijuana is increasing. Data from National Survey on Drug Use and Health 6 indicate that in persons over the age of 12, the rate of past month cannabis use and the number of users in 2009 (6.6 percent or 16.7 million) were higher compared to 2008 (6.1% or 15.2 million) and 2007 (5.8% or 14.4 million).

Medicinal Use of Cannabinoids in Pill Form

Since THC was first isolated and purified 7 from the cannabis plant in 1965, more than 400 chemicals have been isolated, approximately 60 of which are cannabinoids, compounds that are the active agents of cannabis. Reflecting a rapidly growing interest in the therapeutic potential of cannabis, about 21 cannabinoids are currently under study by the US FDA. 8

More recently, two types of cannabinoid receptors have been identified: CB1 found mostly in the central nervous system and responsible for psychoactive properties of cannabis, and CB2 found mostly in the spleen, immune tissues, and peripheral blood, and responsible for immunological and anti-inflammatory effects of cannabis. 9 , 10 A group of endo-cannabinoids has been also identified, e.g., arachidonoylethanolamine or anandamide, as endogenous chemical modulators which mimic the actions of phytocannabinoids and activate cannabinoid receptors. 10 These discoveries have led to the development of numerous CB receptor agonists and antagonists and numerous studies have tested therapeutic indications for these compounds. Medications containing natural or synthetic cannabinoids currently approved or being considered for approval for medicinal use are listed below:

Dronabinol (proprietary name Marinol), a synthetic THC, is FDA approved as an antiemetic in patients undergoing cancer chemotherapy, as an appetite stimulant for weight loss/decreased food intake in AIDS patients, and less frequently to augment analgesic treatment. Dronabinol is a Schedule III medication, indicating it has some potential for psychological and physical dependence.

Nabilone (proprietary name Cesamet), is a synthetic cannabinoid. FDA approved for peroral treatment of nausea and vomiting in chemotherapy patients who have not responded to conventional antiemetics, and anorexia and weight loss in patients with AIDS. Nabilone is a Schedule II medication, with high potential for mental health side effects and addiction.

Sativex , a liquid extract from cannabis plant, is used as oral spray (“liquid marijuana”), contains THC, cannnabidiol (CBD), and other cannabinoids. Sativex has been approved for neuropathic pain, emesis, overactive bladder, and spasticity in several countries including England, Canada, and Spain. Phase III studies of Sativex are currently underway in the US, thus it does not have a schedule assigned to it.

These medications have been approved for specific indications (nausea, vomiting, cachexia) and are currently studied for a number of new indications, such as spastic syndromes, neurological disorders, neuropathic pain, and other pain syndromes, among others. Note that use of medications that have been tested and approved by the FDA is not controversial. What is objectionable is that current efforts to legalize cannabis crude plant use state legislative processes to bypass federal regulatory processes that were put in place specifically to protect the public health.

Suggested Non-FDA Approved Uses of Cannabinoids and Smoked Cannabis

Suggested but as of yet not FDA-approved indications for smoked cannabis and/or cannabinoids include spastic syndromes in neurological disorders, pain syndromes, and glaucoma. We reviewed about 70 studies of oral cannabinoids and the few available studies of smoked cannabis for a number of medical indications. As expected, prescription cannabinoids are effective antiemetics and appetite stimulants, and some studies report their effectiveness as adjunct therapy in chronic pain syndromes, spasticity, and glaucoma. Similar results are reported by the few studies of smoked cannabis plant for these same indications. As noted earlier, safe and effective alternative treatments for all these syndromes are available. Studies assessing psychological aspects of smoked cannabis and prescription cannabinoids uniformly report undesired effects: acute psychosis, poorer prognosis of chronic psychosis, or cognitive dulling in medical patients. In other words, in addition to a number of adverse medical effects (next section), psychological effects of cannabis are common and detrimental. Unfortunately, we found no long-term studies investigating whether and how frequently chronic use of small amounts of cannabis for medicinal purposes develops into cannabis abuse and/or addiction.

Adverse Medical Effects of Cannabis and THC

The extant scientific literature by and large reflects the harmful effects of inhaled cannabis smoke. In what follows we review some of these reports.

Respiratory

Many of the same mutagens and carcinogens found in tobacco smoke are found in marijuana smoke as well. 11 Marijuana smoking has been shown to decrease pulmonary function, produce chronic cough, airway inflammation and abnormal cell growth that may antecede the onset of cancer. 12 However, the International Agency for Research on Cancer found the epidemiologic data inconclusive as to the increased risk of cancer from cannabis use versus that of tobacco smokers. 13 In contrast to tobacco, marijuana-smoking lung injury is not reversed on abstinence. 14

Immunologic

In humans, an increase in mortality of HIV-positive cannabis users has been observed. 15

Cardiovascular

Direct stimulation of the cardiac pacemaker by marijuana leads to an increase in heart rate making THC unsafe in cardiac patients. 14

Daily cannabis use is a risk factor for fibrosis progression via steatogenic effects, thus, daily cannabis use in patients with liver disease is contraindicated. 16 Cannabis users metabolize and activate or inactivate drugs more slowly than normal, 17 potentiating the deleterious effects of the drugs.

Endocrine and Reproductive Systems

In preclinical studies, cannabinoids have shown inhibitory effects on pituitary luteinizing hormone, prolactin, growth hormone, and thyroid stimulating hormone with little effect on follicle-stimulating hormone. 18 , 19 Marijuana can disrupt female reproductive health. 20 Women who smoke marijuana during pregnancy are more likely to have low birth weight infants possibly from a shorter gestation. 21 The effects of maternal marijuana use on infant development have not been systematically studied. However, the lipid solubility of THC allows for rapid transit in breast milk, where it has been shown to accumulate and eventually pass to the newborn. 22

Carcinogenesis

Cannabis use increases the incidence of testicular germ cell tumors – TGCT. 23 The authors observed a 70% increased risk of TGCT associated with current marijuana use, and the risk was particularly elevated for current use that was at least weekly or that began in adolescence. These associations were independent of known TGCT risk factors.

Effects of Smoked Cannabis on Mental Health

Smoking cannabis has a number of acute and chronic pathogenic effects on human mental health. 3 , 24 Direct causal effects of chronic use are difficult to scientifically establish because the condition cannot be randomly assigned or manipulated experimentally for ethical reasons. Nevertheless, prospective population studies indicate that early cannabis use frequently serves as a prelude (or “gateway”) to other illicit drug use. Despite occasional non-confirmatory results, the “gateway sequence” is the most common pattern in the sequential progression in drug use, 25 where marijuana use often is the initial step leading towards more powerful and more harmful drugs.

The mental effects of smoked cannabis include mental slowness, “relaxation”, tiredness, euphoria, and some users report anxiety and paranoia. Acute negative effects on cognition and performance, limited to periods of intoxication, have been all well-documented. 26 , 27 Long-term effects of cannabis use on cognitive performance involve subtle and selective impairments of specific higher cognitive functions 27 , 28 including an impaired ability to focus attention and filter out irrelevant information, which is progressive with the cumulative duration of exposure to cannabis. 29 These effects of chronic use recover only partially in ex-cannabis users, but the past duration of cannabis use continued to have an adverse effect on the ability to effectively reject complex irrelevant information. 30

Remodeling of Brain Reward Circuits - Cannabis Addiction

Active ingredients in cannabis, THC in particular, affect neurophysiological and behavioral systems in ways similar to addictive drugs. 31 Cannabis use is associated with reinforcing pleasurable feelings of reward and euphoria either through direct effects on CB1 receptors expressed in N. Accumbens or through collateral circuits (including endogenous opiate receptors) with similar effects on the reward pathway in the brain. 31 In most cases, addictive drugs “reset” the threshold for stimulation of the reward pathway at a higher level, where only supraphysiological stimulation by drugs can generate the desired feeling of reward. This “hijacking” of the reward pathway reduces the motivational power of natural rewards (e.g. food, opportunity to mate, relationships, etc) and thus reshapes normal motivational priorities. With repeated stimulation of this pathway, cannabis use induces neural plasticity and alters reward-based learning, 32 all leading to phenomenological and behavioral features typical of addiction. Suggestive of its high addictiveness, cannabis is the most commonly used illicit drug in the US and rate of its use continues to rise. 4 , 5 , 6

Cannabis Use and Well-Being

Proponents of cannabis use argue that smoking cannabis provides relaxation and pleasure, enhances the sense of well being, contributes to stress-relief, and helps to deal with hard reality. Of course, any enhancement of well being of a mentally healthy person through use of a psychoactive substance is some sense an oxymoron. Furthermore, cannabis use decreases cortical dopamine 33 which plays a major role in higher cognitive functions, working memory, executive function, etc. Hence, the “relaxed” feeling most cannabis users report as a desirable acute effect, in all likelihood reflects cognitive dulling (“amotivational syndrome”) caused by decreases in cortical dopamine. In other words, the weight of evidence indicates that cannabis creates cognitive dulling rather than reduction in anxiety, indifference rather than relaxation, and amotivation rather than inner peace, all closer to psychopathology than to well being.

Cannabis Use and Work Performance

There is an ongoing debate whether cannabis use interferes with people’s ability to work, relate to others, and/or live a normal life. Recent research clearly shows that any work that requires cognitive involvement and decision making is affected by cannabis use. 27 , 28 , 29 , 34 In a study of young, otherwise mentally and physically healthy cannabis users, Wadsworth et al 28 report an association between cannabis use and impairment in cognitive function and mood but not with workplace errors (although there was an association with lower alertness and slower response organization). Users experienced working memory problems at the start, and psychomotor slowing and poorer episodic recall at the end of the work week. This highlights the importance of the timing of testing within the context and routine of everyday life. In a separate study of the same sample, cannabis use had a significant negative impact on safety at work (such as self-reported accidents), road traffic accidents, and minor injuries. 34 Those who had higher levels of other risk factors associated with accidents and who also used cannabis were more likely to report an accident in the previous year. Thus, it is possible that cannabis-related effects were linked to an amplification of other risk factors associated with accidents and injuries. 34

Cannabis Use and Mental Health in the General Population

According to the study 35 of 18,500 cannabis smokers published by Statistics Netherlands in October 2010, cannabis users suffer mental health problems twice as often as nonusers. The relative risk of mental problems was doubled in male and female cannabis users (20% and 28%, respectively) compared to male and female nonusers (10% and 14%, respectively). Most common mental health issues reported by cannabis users were anxiety, melancholy, sadness, and impatience. In contrast, physical health of users and nonusers barely differed. Though technically illegal, the Netherlands decriminalized the consumption and possession of less than 5 grams (0.18 ounces) of cannabis in 1976 under an official “tolerance” policy.

Taking advantage of the obscure legal status of cannabis, businesses involving sales of cannabis are flourishing and even stock-market investments are available.

For example, CannabisInvestments. com provides information on ways one can invest in hemp-related and medical marijuana products and companies.

CNS Effects of Chronic Cannabis Use

Recently, specific pathogenic effects of cannabis on human brain tissue have been documented. Using high-resolution (3-T) structural magnetic resonance imaging (MRI), Yucel et al 36 determined long-term heavy cannabis use is associated with gross anatomical abnormalities in two cannabinoid receptor–rich regions of the brain, the hippocampus and the amygdala. Subects were healthy males with long-term (more than 10 years) and heavy (more than five joints daily) cannabis use with no history of poly-drug use or neurologic/mental disorders. Cannabis users had bilaterally and significantly reduced hippocampal and amygdala volumes, with changes greater in the hippocampus. In fact, left hemisphere hippocampal volume was inversely associated with cumulative exposure to cannabis during the previous 10 years as well as with subthreshold positive psychotic symptoms. Positive psychosis symptom scores were also associated with cumulative exposure to cannabis.

Cannabis Use and the Risk of Schizophrenia, Psychosis, and Affective Disorders

Cannabis use is among the environmental factors associated with increased risk and worsened prognosis of schizophrenia and some data suggest a causal effect. 3 Cannabis use also is associated with more prevalent expressions of a wider psychosis phenotype. Isolated psychotic symptoms have reported prevalences of 5–15% among chronic cannabis users. 2 , 3 Although causality remains difficult to infer from observational studies, the weight of the evidence appears to favor a causal contribution from cannabis use for the development of Schizophrenia and psychosis. 2

Recent meta-analyses lend further support to the hypothesis that cannabis use causally contributes to the increased risk of development of schizophrenia. In a comprehensive and systematic meta-analysis, Moore et al 37 determined whether cannabis use contributes causally to the development of nonsubstance psychiatric illness, such as schizophrenia and affective disorders. The study was designed to address as much as possible two of the most important methodological problems in studying the relation between cannabis use and psychosis: 1) the potential for reverse causality (where psychosis causes cannabis use and not vice versa) and 2) the transitory intoxication effects (that is misinterpreted as psychosis as the false positive error). The results indicated that the risk of psychosis is increased by roughly 40% (pooled adjusted OR: 1.41) in cannabis users. The results were not as impressive for affective disorders. Within the users, a dose-response effect was observed with the risk more than doubled (OR =2.1) in the most frequent users. For cannabis and psychosis, there was evidence of confounding effects, but the associations persisted in almost all studies, even after adjustment for comprehensive lists of variables. The authors concluded that “there is now sufficient evidence to warn young people that using cannabis could increase their risk of developing a psychotic illness later in life” (page 319).

In a meta analysis of peer-reviewed publications in English reporting age at onset of psychotic illness in substance using and non–substance using groups Large et al 38 found an association between cannabis use and earlier onset of psychosis (the effect was not seen with alcohol). The authors suggest the need for renewed warnings about the potentially harmful effects of cannabis. Similar findings are reported by other authors. 39

Genetic Moderation of Cannabis Effect on Psychosis

One of the most puzzling aspects of cannabis-associated psychosis is that schizophrenia is not rising in incidence to reflect prevalent cannabis use. The likely answer is that there is variation in individual sensitivity to the psychosis-inducing effects of cannabis. In other words, individuals who have a greater biological vulnerability to psychosis are more likely to develop psychotic experiences when exposed to cannabis. As an example, the COMT Val/Val genotype is a risk factor for schizophrenia in the general population 40 presumably by providing a pathological substrate, such as low dopamine in the frontal cortex 40 and high mesolimbic dopamine. 41 Both conditions are believed to contribute to schizophrenia symptoms. Carriers of the COMT Val/Val genotype have low cortical dopamine but do not automatically develop schizophrenia. Rather, this genotype is considered to be a matter of individual variability in the level of cortical dopamine. Hovever, carriers of this genotype, who were also chronic cannabis users as adolescents, have a dramatically (up to 10 times) higher risk of psychosis 42 compared to adult-onset cannabis users with the same genotype. Cannabis use is reported to further decrease cortical 33 and increase mesolimbic dopamine 43 possibly amplifying the preexisting, genetically created dopamine deficit. If occurring during the sensitive developmental period of adolescence, such augmentation may synergistically facilitate the onset of psychosis. Similar interactive synergism was recently described for the AKT1 gene and cannabis. 45

Finally, recent study by Welch et al 44 was the first longitudinal study to demonstrate an association between thalamic volume loss and exposure to cannabis in people currently unaffected by Schizophrenia but with increased risk for the illness due to positive family history. As Welch et al 44 conclude, this finding may be important in understanding the link between cannabis exposure and the subsequent development of Schizophrenia.

Empirical and clinical studies reviewed here clearly demonstrate pathological effects of cannabis smoking on physical and especially mental health as well as its interference with social and occupational functioning. We did not find a single methodologically sound study to suggest that the benefits of smoking cannabis outweigh the associated risks. These negative data far outweigh documented benefits for a limited set of medical indications for which safe and effective alternative treatments are readily available. However, advocacy groups are pursuing legalization or medical use of smoked cannabis, largely ignoring pills containing extracted THC and other cannabinoids. It appears therefore that it is not the benefit of active cannabis ingredients, but the route of administration, a wider set of indications, and the ritual of use that’s being advocated. Based on the empirical and clinical evidence reviewed here, it seems safe to conclude that, if there is any medical role for cannabinoid drugs, it lies with chemically modified extracts, not with unprocessed cannabis plant.

Dragan M. Svrakic, MD, PhD, and Patrick J. Lustman, PhD, practice at the Washington University School of Medicine and the Veterans Administration Medical Center in St. Louis. Ashok Mallya, MD, Taylor Andrea Lynn, PhD, and Rhonda Finney, RN, practice at the Veterans Administration Medical Center. Neda M. Svrakic, is at the University of Illinois at Urbana-Champaign.

Contact: [email protected]

None reported.

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Regions & Countries

Most americans favor legalizing marijuana for medical, recreational use, legalizing recreational marijuana viewed as good for local economies; mixed views of impact on drug use, community safety.

Pew Research Center conducted this study to understand the public’s views about the legalization of marijuana in the United States. For this analysis, we surveyed 5,140 adults from Jan. 16 to Jan. 21, 2024. Everyone who took part in this survey is a member of the Center’s American Trends Panel (ATP), an online survey panel that is recruited through national, random sampling of residential addresses. This way nearly all U.S. adults have a chance of selection. The survey is weighted to be representative of the U.S. adult population by gender, race, ethnicity, partisan affiliation, education and other categories. Read more about the ATP’s methodology .

Here are the questions used for the report and its methodology .

As more states pass laws legalizing marijuana for recreational use , Americans continue to favor legalization of both medical and recreational use of the drug.

An overwhelming share of U.S. adults (88%) say marijuana should be legal for medical or recreational use.

Nearly six-in-ten Americans (57%) say that marijuana should be legal for medical and recreational purposes, while roughly a third (32%) say that marijuana should be legal for medical use only.

Just 11% of Americans say that the drug should not be legal at all.

Opinions about marijuana legalization have changed little over the past five years, according to the Pew Research Center survey, conducted Jan. 16-21, 2024, among 5,14o adults.

The impact of legalizing marijuana for recreational use

While a majority of Americans continue to say marijuana should be legal , there are varying views about the impacts of recreational legalization.

About half of Americans (52%) say that legalizing the recreational use of marijuana is good for local economies; just 17% think it is bad and 29% say it has no impact.

More adults also say legalizing marijuana for recreational use makes the criminal justice system more fair (42%) than less fair (18%); 38% say it has no impact.

However, Americans have mixed views on the impact of legalizing marijuana for recreational use on:

• Use of other drugs: About as many say it increases (29%) as say it decreases (27%) the use of other drugs, like heroin, fentanyl and cocaine (42% say it has no impact).
• Community safety: More Americans say legalizing recreational marijuana makes communities less safe (34%) than say it makes them safer (21%); 44% say it has no impact.

Partisan differences on impact of recreational use of marijuana

There are deep partisan divisions regarding the impact of marijuana legalization for recreational use.

Majorities of Democrats and Democratic-leaning independents say legalizing recreational marijuana is good for local economies (64% say this) and makes the criminal justice system fairer (58%).

Fewer Republicans and Republican leaners say legalization for recreational use has a positive effect on local economies (41%) and the criminal justice system (27%).

Republicans are more likely than Democrats to cite downsides from legalizing recreational marijuana:

• 42% of Republicans say it increases the use of other drugs, like heroin, fentanyl and cocaine, compared with just 17% of Democrats.
• 48% of Republicans say it makes communities less safe, more than double the share of Democrats (21%) who say this.

Demographic, partisan differences in views of marijuana legalization

Sizable age and partisan differences persist on the issue of marijuana legalization though small shares of adults across demographic groups are completely opposed to it.

Older adults are far less likely than younger adults to favor marijuana legalization.

This is particularly the case among adults ages 75 and older: 31% say marijuana should be legal for both medical and recreational use.

By comparison, half of adults between the ages of 65 and 74 say marijuana should be legal for medical and recreational use, and larger shares in younger age groups say the same.

Republicans continue to be less supportive than Democrats of legalizing marijuana for both legal and recreational use: 42% of Republicans favor legalizing marijuana for both purposes, compared with 72% of Democrats.

There continue to be ideological differences within each party:

• 34% of conservative Republicans say marijuana should be legal for medical and recreational use, compared with a 57% majority of moderate and liberal Republicans.
• 62% of conservative and moderate Democrats say marijuana should be legal for medical and recreational use, while an overwhelming majority of liberal Democrats (84%) say this.

Views of marijuana legalization vary by age within both parties

Along with differences by party and age, there are also age differences within each party on the issue.

A 57% majority of Republicans ages 18 to 29 favor making marijuana legal for medical and recreational use, compared with 52% among those ages 30 to 49 and much smaller shares of older Republicans.

Still, wide majorities of Republicans in all age groups favor legalizing marijuana at least for medical use. Among those ages 65 and older, just 20% say marijuana should not be legal even for medical purposes.

While majorities of Democrats across all age groups support legalizing marijuana for medical and recreational use, older Democrats are less likely to say this.

About half of Democrats ages 75 and older (53%) say marijuana should be legal for both purposes, but much larger shares of younger Democrats say the same (including 81% of Democrats ages 18 to 29). Still, only 7% of Democrats ages 65 and older think marijuana should not be legalized even for medical use, similar to the share of all other Democrats who say this.

Views of the effects of legalizing recreational marijuana among racial and ethnic groups

Substantial shares of Americans across racial and ethnic groups say when marijuana is legal for recreational use, it has a more positive than negative impact on the economy and criminal justice system.

About half of White (52%), Black (53%) and Hispanic (51%) adults say legalizing recreational marijuana is good for local economies. A slightly smaller share of Asian adults (46%) say the same.

Criminal justice

Across racial and ethnic groups, about four-in-ten say that recreational marijuana being legal makes the criminal justice system fairer, with smaller shares saying it would make it less fair.

However, there are wider racial differences on questions regarding the impact of recreational marijuana on the use of other drugs and the safety of communities.

Use of other drugs

Nearly half of Black adults (48%) say recreational marijuana legalization doesn’t have an effect on the use of drugs like heroin, fentanyl and cocaine. Another 32% in this group say it decreases the use of these drugs and 18% say it increases their use.

In contrast, Hispanic adults are slightly more likely to say legal marijuana increases the use of these other drugs (39%) than to say it decreases this use (30%); 29% say it has no impact.

Among White adults, the balance of opinion is mixed: 28% say marijuana legalization increases the use of other drugs and 25% say it decreases their use (45% say it has no impact). Views among Asian adults are also mixed, though a smaller share (31%) say legalization has no impact on the use of other drugs.

Community safety

Hispanic and Asian adults also are more likely to say marijuana’s legalization makes communities less safe: 41% of Hispanic adults and 46% of Asian adults say this, compared with 34% of White adults and 24% of Black adults.

Wide age gap on views of impact of legalizing recreational marijuana

Young Americans view the legalization of marijuana for recreational use in more positive terms compared with their older counterparts.

Clear majorities of adults under 30 say it is good for local economies (71%) and that it makes the criminal justice system fairer (59%).

By comparison, a third of Americans ages 65 and older say legalizing the recreational use of marijuana is good for local economies; about as many (32%) say it makes the criminal justice system more fair.

There also are sizable differences in opinion by age about how legalizing recreational marijuana affects the use of other drugs and the safety of communities.

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Table of contents, most americans now live in a legal marijuana state – and most have at least one dispensary in their county, 7 facts about americans and marijuana, americans overwhelmingly say marijuana should be legal for medical or recreational use, clear majorities of black americans favor marijuana legalization, easing of criminal penalties, religious americans are less likely to endorse legal marijuana for recreational use, most popular.

About Pew Research Center Pew Research Center is a nonpartisan fact tank that informs the public about the issues, attitudes and trends shaping the world. It conducts public opinion polling, demographic research, media content analysis and other empirical social science research. Pew Research Center does not take policy positions. It is a subsidiary of The Pew Charitable Trusts .

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The Data On Legalizing Weed

Greg Rosalsky

Editor's note: This is an excerpt of Planet Money 's newsletter. You can sign up here .

Last month, New Jersey Governor Phil Murphy signed three bills making it official: marijuana will soon be growing legally in the gardens of the Garden State for anyone over 21 to enjoy. The bills follow through on a marijuana legalization ballot initiative that New Jerseyans approved overwhelmingly last year. New Jersey is now one of a dozen states, plus the District of Columbia, which have let loose the magic dragon — and more states, like Virginia, may be on the way.

It's been almost a decade since Colorado and Washington legalized marijuana. That's given economists and other researchers enough time to study the effects of the policy. Here are some of the most interesting findings:

Legalization didn't seem to substantially affect crime rates — Proponents of legalizing weed claimed it would reduce violent crimes. Opponents said it would increase violent crimes. A study by the CATO Institute finds, "Overall, violent crime has neither soared nor plummeted in the wake of marijuana legalization."

Legalization seems to have little or no effect on traffic accidents and fatalities — Opponents of marijuana legalization argued it would wreak havoc on the road. A few studies have found that's not the case. Economists Benjamin Hansen, Keaton S. Miller & Caroline Weber, for instance, found evidence suggesting it had no effect on trends in traffic fatalities in both Colorado and Washington.

Legalization has barely affected the price of marijuana — Many people believed that marijuana prices would crash after legalization, providing an increased incentive to use it. But a recent study by the CATO institute found prices have barely budged. The price of getting high has stayed high. In California, for example, the price of marijuana actually increased after legalization, before leveling off at about $260 an ounce. Before full legalization, it cost about $250 an ounce. All the states that have legalized marijuana have seen prices converge around that level. "The convergence in prices across states is consistent with the idea that legalization diverts marijuana commerce from underground markets to legal retail shops, allowing retailers to charge a premium as the preferred sources of supply," the authors write.

Legalization has created jobs. Lots of jobs — A new report by Leafly and Whitney Economics finds the marijuana industry is booming. In 2020 alone, they calculate, it created 77,000 jobs. Across the country, there are about 321,000 jobs in the legal marijuana industry. That's more than the mining industry .

Legalization is good for state budgets — Tax revenue from legal recreational marijuana has surpassed everyone's expectations. Colorado usually collects more than $20 million a month. In 2020, the state collected a total of $387 million. The California government collects more than $50 million a month. You can find similar stories in other states that have legalized.

Legalization may be good for states' workers' comp programs — A new working paper by economists Rahi Abouk, Keshar M. Ghimire, Johanna Catherine Maclean and David Powell finds that states that legalized recreational marijuana saw a significant decline in the use of their worker compensation systems. They estimate that the number of workers aged 40-62 who received income from workers comp fell by about 20 percent following legalization. Evidence suggests that the reason for the decline is that marijuana provides "an additional form of pain management therapy" that reduces use of opioids, which are highly addictive and can be much more debilitating. Marijuana's effect on reducing opioid abuse has been documented in other studies .

Depending on whom you ask, it's not all good news. If you believe smoking marijuana is bad, then you'll be unhappy to hear that its use, naturally, increases after legalization. A study in the American Journal For Preventative Medicine , for example, found that legalization in Washington may be stalling the decades-long decline of marijuana use amongst teens. Another study found adults over 26 consume more cannabis after legalization. It seems even the AARP crowd is toking up more these days, too.

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Home — Essay Samples — Law, Crime & Punishment — Marijuana Legalization — Unpacking the Debate: The Pros and Cons of Legalizing Marijuana

Unpacking The Debate: The Pros and Cons of Legalizing Marijuana

• Categories: Cannabis Marijuana Marijuana Legalization

About this sample

Words: 1686 |

Published: Mar 18, 2021

Words: 1686 | Pages: 4 | 9 min read

Bibliography

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• http://www.dailyhelmsman.com/online_features/opinion-should-marijuana-be-legal/article_c0c79d52-2e6e-11e9-8df2-6f1cc833c9f9.html
• https://www.debatingeurope.eu/focus/arguments-legalising-cannabis/#.XOhhMYhKjIU
• https://thesleepdoctor.com/2018/11/27/thinking-about-using-cannabis-for-sleep-here-are-some-things-to-know/?cn-reloaded=1
• https://www.huffpost.com/entry/marijuana-legalization_n_4151423?guccounter=1&guce_referrer=aHR0cHM6Ly93d3cuZ29vZ2xlLmNvbS8&guce_referrer_sig=AQAAAFWwBQJd8aZZvM2CkRM4j_ahPD0AgNS8dV0urMpRILLvpG3DtwUdUX6cFlPsFejjN4K6JIKNo6J_ijqP3j5CMkPUlE2q1oonqdYNjrk_vXj-xaZF0pLDUbrURy4C6HBmAF4bhAkQk4FK_vkK2XPv2F6B18f5d8iRzp2wlhcgs-fv
• https://www.medicalnewstoday.com/articles/320984.php
• https://www.webmd.com/mental-health/addiction/recreational-marijuana-faq
• https://www.drugabuse.gov/publications/research-reports/marijuana/what-marijuana
• https://elpais.com/elpais/2018/10/18/inenglish/1539863917_686561.html
• https://www.scmp.com/week-asia/society/article/2172531/green-gold-rush-thailand-malaysia-race-legalise-medical-marijuana
• https://www.bbc.com/news/world-46374191 (globally diverse source/for)
• http://www.businessworld.in/article/Why-Cannabis-Should-Be-Legalised-In-India/13-01-2019-166025/

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