Cannabis is arguably the most widely used recreational substance globally, yet it remains illegal in most countries. Its prevalence is so high that many individuals wouldn’t hesitate to request a smoke at a friend’s place or even in public areas. This ancient substance has been utilized for centuries for medicinal, spiritual, and recreational purposes. Due to the fear-driven propaganda of the 1960s and 1970s, numerous misconceptions about cannabis persist – this list aims to clarify these myths definitively.
10. Fat Storage

Myth: The active compound in cannabis, THC, is stored in body fat, and its effects can linger for days or even weeks.
Fact: While it’s true that cannabis, like many other substances, is stored in the body’s fat cells, allowing it to be detected long after consumption, this is the only accurate part of the myth. The psychoactive effects of cannabis are quickly depleted, and although traces of the drug remain, they no longer impact the user. Additionally, THC stored in fat poses no harm to the brain, fat cells, or any other part of the body.
9. Memory Loss

Myth: Using cannabis leads to memory loss and a decline in logical thinking and intelligence.
Fact: This myth contains partial truths, which likely contribute to its widespread belief. Studies have demonstrated that cannabis temporarily impairs short-term memory, but only during intoxication. Individuals can recall information learned prior to using cannabis but may struggle to retain new information while under its influence. There is no scientific evidence indicating that these effects persist long-term or become permanent after sobriety.
8. Scientific Proof

Myth: Scientific evidence confirms that cannabis is harmful.
Fact: To begin, consider this statement: “Long-term cannabis smoking poses no health risks.” This assertion originates from The Lancet, a respected British medical journal established in 1823. There is no unanimous scientific agreement on cannabis use, nor any definitive proof that moderate consumption is detrimental to health.
7. Loss of Motivation

Myth: Using cannabis leads to apathy and a decline in motivation.
Fact: Research involving subjects who were administered high doses of cannabis regularly over days or weeks revealed no decline in motivation or performance capabilities. While prolonged abuse of any intoxicating substance can impair normal functioning, cannabis is neither more nor less harmful in this regard. Additionally, studies suggest that cannabis users often hold higher-paying jobs compared to non-users.
6. Crime Statistics

Myth: Cannabis use leads to criminal behavior.
Fact: While some argue that cannabis induces violence and aggression, thereby increasing crime rates, the evidence does not support this claim. In-depth studies reveal that cannabis users are often less prone to criminal activity due to the substance’s calming effects. However, since cannabis is illegal in many countries, users are often labeled as criminals simply for possessing it.
5. Braindead

Myth: Cannabis destroys brain cells.
Fact: Cannabis does not significantly alter a person’s cognitive abilities. While some individuals may experience temporary feelings of panic, paranoia, or fear after consumption, these effects are short-lived and not permanent. In rare cases, excessive consumption can lead to toxic psychosis, but this is not exclusive to cannabis and occurs infrequently.
4. Gateway to Other Drugs

Myth: Cannabis acts as a gateway drug, leading users to experiment with more dangerous substances.
Fact: For the majority, cannabis is an endpoint rather than a gateway. While many hard-drug users, such as those of heroin or LSD, have previously used cannabis, this correlation is misleading. The proportion of cannabis users who transition to harder drugs is minimal, indicating no direct causal relationship.
3. Cannabis and Addiction

Myth: Cannabis is extremely addictive.
Fact: Fewer than one percent of Americans consume cannabis daily. Among heavy users, only a small fraction exhibit signs of dependence and seek help from rehabilitation services to quit. However, cannabis does not cause physical addiction. The need for assistance is more likely due to breaking a habitual behavior rather than overcoming an addiction.
This list was inspired by the excellent work of the Drug Policy Alliance Network.
Sources: 1. Mellinger, G.D. et al. “Drug Use, Academic Performance, and Career Indecision: Longitudinal Data in Search of a Model.” Longitudinal Research on Drug Use: Empirical Findings and Methodological Issues. Ed. D.B. Kandel. Washington, DC: American Psychological Association, 1978. 157-177. 2. Johnson, L.D., et al. “Drugs and Delinquency: A Search for Causal Connections.” Ed. D.B. Kandel. Longitudinal Research on Drug Use: Empirical Findings and Methodological Issues. New York: John Wiley & Sons, 1978. 137-156. 3. Schreiber, W.; A. M. Pauls and J. C. Kreig (February 5, 1988). “[Toxic psychosis as an acute manifestation of diphenhydramine poisoning]”. Deutsche medizinische Wochenschrift 113 (5): 180–183. PMID 3338401. 4. Degenhardt, Louisa, Wayne Hall and Michael Lynskey. “Testing hypotheses about the relationship between cannabis use and psychosis,” Drug and Alcohol Dependence 71 (2003): 42-4. 5. King LA, Carpentier C, Griffiths P. “Cannabis potency in Europe.” Addiction. 2005 Jul; 100(7):884-6 6. Turner, Carlton E. The Marijuana Controversy. Rockville: American Council for Drug Education, 1981. 7. Stephens, R.S., et al. “Adult marijuana users seeking treatment.” Journal of Consulting and Clinical Psychology 61 (1993): 1100-1104.
2. Lung Damage

Myth: Cannabis is more harmful to the lungs than tobacco cigarettes.
Fact: Cannabis users who do not smoke cigarettes typically consume far less frequently, reducing their exposure to harmful smoke. Additionally, cannabis smoke lacks the numerous additives found in commercial cigarettes, which are designed to accelerate burning or maintain combustion. Some evidence even suggests that marijuana smoke affects the bronchial tubes differently than cigarette smoke, potentially reducing the risk of conditions like emphysema even with heavy use.
1. Modern Potency

Myth: Today’s cannabis is significantly stronger than in previous decades.
Fact: This myth stems from potency tests conducted on small samples seized by drug enforcement agencies, which do not represent the broader market. Most cannabis available today has a similar potency to that of past decades. Even if potency were higher, the effects on users would remain largely unchanged. Reliable statistical data from the 1980s shows little to no increase in potency, contradicting modern claims.
