The European Union just published the results of a peer-reviewed study which reveals that the effects of alcohol and cannabis on aggressive tendencies.

The study published in the July edition of Springer Science measures the effects of the two psychoactive substances on subjective aggression, which means they measured the subjects admitted experience of aggressive tendencies while intoxicated.

After imbibing of either substance, participants were exposed to aggressive images and then asked whether they felt more or less aggressive. As a control some participants were given placebos. The findings indicate a stark difference.

According to the papers results and conclusions:

Subjective aggression significantly increased following aggression exposure in all groups while being sober. Alcohol intoxication increased subjective aggression whereas cannabis decreased the subjective aggression following aggression exposure. Aggressive responses during the PSAP increased following alcohol and decreased following cannabis relative to placebo. Changes in aggressive feeling or response were not correlated

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