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Cannabis Use Linked to Higher Risk of Violence

Mayur Tembhare
  1. The review analyzed data from over 265,000 people from 63 studies.

  2. Cannabis users were around twice as likely to have committed a violent act as those who didn't.

  3. People who used cannabis were about one and a half times as likely to become victims of violence.

  4. The association between cannabis use and violence was stronger among women than among men.

Cannabis Use Linked to Higher Risk of Violence

Topic: Health

A large review of 63 studies found that people who use cannabis are more likely to commit violent acts and experience violence themselves. The review, led by researchers at King's College London, analyzed data from over 265,000 people and found that cannabis users were around twice as likely to have committed a violent act as those who didn't.

A large review of 63 studies has found that people who use cannabis are more likely to commit violent acts and experience violence themselves. The review was led by researchers at King's College London and analyzed data from over 265,000 people.

The researchers used the World Health Organization's broad definition of violence, which includes physical, sexual, and psychological violence toward another person, both inside and outside intimate relationships. They also separated self-reported violence from cases that resulted in criminal convictions.

The review found that cannabis users were around twice as likely to have committed a violent act as those who didn't. This association was stronger among women than among men. The researchers also found that people who used cannabis were about one and a half times as likely to become victims of violence.

The study's authors, Dr. Marta Di Forti and Professor Sir Robin Murray, said that the review shows that violence, both committing it and experiencing it, needs to be part of the conversation about cannabis use. They also emphasized that the review identifies an association and does not prove that cannabis directly causes violence.

The researchers suggest that daily use of today's more potent cannabis products could potentially be associated with stronger effects.

Why It Matters

This study is important because it highlights the potential risks of cannabis use, especially for young people in India who may be tempted to try cannabis. Understanding these risks can help us develop effective strategies to prevent violence and promote healthy behaviors.

Key Facts

  • The review analyzed data from over 265,000 people from 63 studies.
  • Cannabis users were around twice as likely to have committed a violent act as those who didn't.
  • People who used cannabis were about one and a half times as likely to become victims of violence.
  • The association between cannabis use and violence was stronger among women than among men.
  • The study's authors suggest that daily use of today's more potent cannabis products could potentially be associated with stronger effects.

Key Terms

Cannabis
A plant whose leaves can be used for medicinal or recreational purposes
Violence
The use of physical force to harm someone, including physical, sexual, and psychological violence

Implications

This study is important because it highlights the potential risks of cannabis use, especially for young people in India who may be tempted to try cannabis. Understanding these risks can help us develop effective strategies to prevent violence and promote healthy behaviors.

Source: https://www.sciencedaily.com/releases/2026/09/260930020255.htm

Journal reference:

  1. Giulia Trotta, Victoria Rodriguez, Paolo Marino, Meklit Gurmesa, Edoardo Spinazzola, Zhikun Li, Luis Alameda, Marta Di Forti, Robin Murray, Evangelos Vassos. Cannabis use is associated with increased risk of violence: A systematic review and meta-analysis. Psychological Medicine, 2026; 56 DOI: 10.1017/S0033291726105856

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