Cannabis Stigma, Psychosis and the “I Don’t Want to Smell It” Argument

Cannabis laws have changed dramatically, but many of the arguments used to justify prohibition never really disappeared. They simply learned how to sound more reasonable.

Today, two statements appear constantly in conversations about legalization:

1. “Cannabis is much stronger now, and it is making people psychotic.”

2. “I support legalization—I just don’t want to smell it everywhere.”

Both statements may sound like practical concerns. Both can contain a legitimate issue worth discussing. But both are also frequently used to preserve the same stigma that has followed cannabis consumers for generations.

Honest conversations about potency, mental health and public consumption are necessary. Sensationalism and selective disgust are not.

Stigma No. 1: “Cannabis Is Stronger Now, So It Makes People Go Crazy”

Let’s begin with what is true: cannabis has become more potent.

According to the National Institute on Drug Abuse, the average THC concentration in cannabis seized by law enforcement increased from approximately 4 percent in 1995 to more than 16 percent in 2022. Concentrates can contain substantially more THC than cannabis flower. (National Institute on Drug Abuse)

That does not mean every modern cannabis product is four times “better,” nor does it mean today’s consumers automatically receive four times the dose. People often adjust how much they consume based on a product’s strength, tolerance and desired effects.

THC percentage also does not tell us everything about a product’s quality or effects. Cannabinoid ratios, terpenes, freshness, cultivation, consumption method, dosage and individual biology all matter. A flower testing at 30 percent THC is not automatically superior to one testing at 18 percent.

More importantly, rising potency does not prove the sensational claim that modern cannabis transforms otherwise healthy people into violent, psychotic killers.

What Does the Research Actually Say About Cannabis and Psychosis?

Cannabis is not harmless, and legalization advocates should not pretend otherwise.

Research has found an association between cannabis use and psychosis, particularly among people who begin using at a young age, consume cannabis frequently, use high-THC products or already possess certain mental-health vulnerabilities. The National Academies concluded that cannabis use is likely associated with an increased risk of schizophrenia and other psychoses, with heavier use linked to greater risk. (National Academies of Sciences, Engineering, and Medicine)

However, association is not the same thing as a simple, universal cause-and-effect formula.

Genetic vulnerability, age of first use, frequency, dosage, childhood trauma, other substance use and preexisting symptoms can all influence the relationship. Some research also suggests that people predisposed to schizophrenia may be more likely to use cannabis, further complicating claims about which factor came first.

The responsible conclusion is not “cannabis can never contribute to psychotic symptoms.” Acute paranoia, delusions and hallucinations can occur, especially after excessive THC consumption. The responsible conclusion is that potency alone does not turn the average consumer into a psychotic or violent person.

That distinction matters.

Alcohol can contribute to aggression, dependency, poisoning and impaired judgment. Prescription medications can produce severe psychiatric side effects. Yet society generally discusses those risks through dosage, contraindications, consumer education and regulation. Cannabis deserves the same evidence-based approach.

It should not be evaluated through horror stories.

Victor Licata and Tampa’s Contribution to Reefer Madness

Tampa has its own disturbing place in the history of cannabis propaganda.

In 1933, Victor Licata killed his parents and three siblings with an axe in their Ybor City home. Newspapers and law-enforcement officials quickly connected the tragedy to marijuana.

An October 20, 1933, Tampa Morning Tribune editorial titled “Stop This Murderous Smoke” acknowledged that marijuana might not have been responsible for the crime—and then demanded prohibition anyway.

That is practically a blueprint for cannabis yellow journalism: admit that the evidence is uncertain, publish the terrifying story and use the public’s fear to demand punishment.

The historical record showed that Licata had suffered from serious mental illness before the killings. Tampa police had reportedly attempted to have him institutionalized approximately a year earlier. Mental illness also existed within his family, and his psychiatric records did not identify marijuana as the cause of his condition.

Nevertheless, the case became part of the anti-marijuana narrative promoted by federal narcotics commissioner Harry Anslinger. The message presented to the public was simple: one marijuana cigarette could turn an ordinary person into a homicidal maniac.

The Tampa Bay Times later revisited the Licata case, documenting how the murders were used to advance marijuana criminalization despite Licata’s established history of mental illness.

Cannabis did not need to be proven responsible. It only needed to be present in the story.

From “Reefer Madness” to Sinsemilla Panic

The argument was eventually updated.

When sinsemilla became more familiar to American consumers, opponents again warned that cannabis had fundamentally changed. Sinsemilla is not a mysterious chemical process. The term generally describes seedless cannabis flower produced by preventing female plants from being pollinated.

Without producing seeds, the plant directs more of its energy toward resinous flower development. The result can be more cannabinoid-rich cannabis.

Once again, the political message became: “This is not your parents’ marijuana.”

That slogan has survived for decades because it is useful. Every improvement in cultivation can be framed as evidence that cannabis has crossed some new threshold from manageable to monstrous.

Cannabis products should be accurately labeled. Consumers should understand potency. Serving sizes should be clear, and inexperienced consumers should start with very small amounts. None of that requires pretending sinsemilla is botanical insanity or that a high laboratory number guarantees psychosis.

The same basic principles apply to cannabis that apply to almost everything else: product strength, amount consumed and individual risk factors matter.

Can Someone Fatally Overdose on Cannabis?

Using too much cannabis can produce an intensely unpleasant experience. Symptoms may include panic, confusion, vomiting, paranoia, rapid heart rate, delusions or hallucinations. Edibles present a particular risk because their effects can be delayed, leading an inexperienced person to consume more before the first dose takes effect.

However, the CDC states that a fatal overdose caused solely by cannabis is unlikely. (CDC Cannabis FAQ)

That does not mean reckless consumption is safe. Intoxication can contribute to falls, accidents, dangerous decisions or medical emergencies. It means cannabis should be discussed accurately instead of being placed in the same pharmacological category as substances that routinely cause fatal respiratory depression.

Regulation makes that accuracy possible through testing, labeling, age restrictions and consumer education. Prohibition leaves consumers with untested products and very little reliable information.

A Necessary Mental-Health Disclaimer

Anyone with a personal or family history of psychosis, schizophrenia or serious psychiatric instability should speak with a qualified medical professional before using THC—and may be advised to avoid it completely.

If cannabis repeatedly produces paranoia, hallucinations, delusional thinking or an inability to distinguish reality, stop using it and seek professional help. If you genuinely believe that smoking a joint could trigger a dangerous psychiatric episode, that is a reason to take your mental health seriously. It is not a reason to arrest millions of other adults.

If someone appears to be in immediate danger of harming themselves or another person, call 911 or seek emergency medical assistance.

Stigma No. 2: “I Support Legalization—I Just Don’t Want to Smell It”

This statement deserves a little more examination than it usually receives.

Nobody is required to enjoy the smell of burning cannabis. Smoke can be irritating. Apartment residents should not have to live with smoke continually entering their homes. Businesses, landlords and local governments can establish reasonable rules for smoking in shared spaces.

But when someone claims to support legalization while demanding that cannabis consumers remain completely invisible, the objection is no longer only about odor.

It becomes conditional acceptance:

“You may have this right, but only if I never have to know that you are exercising it.”

That is a classic mechanism of social prejudice.

This does not mean cannabis discrimination is identical to racism or anti-LGBTQ+ discrimination. Those movements involve their own histories, violence and systemic injustices, and comparisons should never diminish them.

But the rhetorical structure is familiar.

Someone says they are not homophobic, but objects whenever a gay couple holds hands or kisses in public. Someone says they have no problem with Black people, then uses coded complaints about clothing, hairstyles, music or “looking like a thug” to decide who belongs in a neighborhood.

The alleged position is tolerance. The practical demand is invisibility or conformity.

Similarly, “I support legalization, but I never want to smell cannabis” can mean: “Cannabis consumers may technically exist, but they should never be visible, recognizable or comfortable in public life.”

That is not full acceptance.

https://youtube.com/shorts/VdM8TDFb68E?si=TA0iEZKfqv7LHeuS

Smell Is a Nuisance Issue, Not a Justification for Prohibition

Society already knows how to regulate strong smells without criminalizing the people associated with them.

Cigarette smoking is restricted in many indoor locations. Restaurants manage cooking exhaust. Cities regulate industrial odors. Housing communities establish rules for smoke migration. None of those policies require police to search homes, arrest consumers or give people criminal records.

Legal cannabis can be handled the same way.

Designated consumption areas, ventilation standards, smoke-free indoor rules and reasonable protections for neighboring properties can address unwanted exposure. Legalization does not have to mean smoking everywhere. It means adults should not be arrested simply for possessing or consuming cannabis.

The smell of cannabis is temporary. A criminal conviction can follow someone for life.

What About All the Alcohol Advertising?

There is also an enormous cultural double standard.

A person can travel through Tampa and encounter alcohol advertising on billboards, restaurant windows, sports broadcasts, concerts, social media, buses and convenience-store displays. Alcohol is not merely legal; it is constantly promoted as an essential ingredient of sports, dating, vacations, celebrations and adulthood.

Research published in 2024 found that more than half of surveyed American adolescents reported sometimes or often encountering alcohol marketing while watching television, streaming videos, attending movies or browsing online. (American Journal of Preventive Medicine Focus)

Sugar receives similarly favorable treatment. Children are exposed to advertisements for candy, soda, sweetened cereals and highly processed foods from an early age.

As someone who consumes cannabis but does not drink alcohol, I am personally tired of seeing alcohol advertisements everywhere. I do not get to demand that every beer billboard, cocktail menu and liquor promotion disappear merely because alcohol is not part of my life.

Instead, society expects me to coexist with a legal product other adults choose to consume.

Cannabis consumers deserve that same basic respect.

You do not have to smoke cannabis. You do not have to enjoy its smell. You do not have to visit a dispensary. But personal dislike should not determine whether another adult deserves freedom.

Legalization Requires Honesty, Not Perfection

Cannabis legalization does not require claiming that cannabis is harmless, odorless or appropriate for everyone.

It requires proportion.

High-THC cannabis can create serious problems for some consumers. Those risks justify education, testing, responsible packaging, age restrictions and mental-health awareness. They do not justify reviving the false image of the ordinary cannabis consumer suddenly becoming an axe murderer.

Cannabis smoke can annoy people. That justifies reasonable public-smoking rules and protections against unwanted secondhand smoke. It does not justify treating cannabis consumers as people who must hide.

The language of reefer madness has become more polished, but the underlying demand remains remarkably consistent: fear cannabis, isolate its consumers and preserve punishment.

Nearly a century after the Victor Licata tragedy was exploited to advance prohibition, Tampa has an opportunity to reject that formula.

We can discuss cannabis honestly without demonizing it. We can respect nonconsumers without criminalizing consumers. We can regulate conduct without reviving stigma.

That is what mature legalization looks like.

Frequently Asked Questions

Does stronger cannabis cause psychosis?

Research associates frequent use—especially high-THC use—with an increased risk of psychosis in susceptible individuals. Potency is one factor, but age, frequency, dosage, genetics, mental-health history and other substance use also matter. Strong cannabis does not automatically cause psychosis in every consumer.

Can cannabis cause a fatal overdose?

The CDC says a fatal overdose caused solely by cannabis is unlikely. Excessive consumption can still cause severe anxiety, paranoia, vomiting, confusion and dangerous behavior, particularly with high-dose edibles.

What is sinsemilla?

Sinsemilla is seedless cannabis flower, generally produced by preventing female plants from being pollinated. It may contain more resin and cannabinoids than seeded flower, but it is a cultivation method—not a synthetic drug.

Is objecting to cannabis odor always discriminatory?

No. People can reasonably object to smoke entering their homes or enclosed shared spaces. The stigma appears when odor is used as a pretext to oppose legalization entirely or demand that cannabis consumers remain invisible everywhere.

Can cities regulate cannabis smoke without arresting consumers?

Yes. Governments can use designated consumption areas, indoor-smoking restrictions, ventilation standards and nuisance rules without criminalizing adult possession.