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

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.

If someone has a condition that makes their muscles shrink, using muscle-building drugs and working out together helps them gain more muscle and strength than using either one by itself.

Different studies show wildly different results when people use steroid-like drugs and work out, because each study uses different kinds of drugs, different doses, and different workout routines.

If powerlifters think they're taking steroids—even when they're just getting a fake pill—they might still get stronger, just because their mind expects it to work.