People who use steroid drugs to get stronger tend to become more aggressive, and this matches what other studies have found before.

Strength athletes who use anabolic steroids tend to score higher on measures of anger, impulsiveness, and muscle tension, and lower on how much they try to seem nice or socially acceptable, compared to athletes who’ve never used steroids or stopped using them for at least six months.

People who currently use steroid drugs to build muscle and are into strength sports tend to score higher on traits like aggression and impulsivity than regular people who don’t use steroids.