The most serious effects of steroids are on the liver, the heart, the reproductive organs, and mental health. The liver is at risk for hepatitis and tumors. Blood pressure rises. HDL, the good cholesterol, lowers and LDL, the bad cholesterol, increases. Testicles shrink and the prostate gland enlarges.
Sperm production becomes less.
Behavior changes include aggression, paranoia, mood swings, reduced sexual drive, and depression. Using anabolic steroids for athletic gain is dangerous, unethical, and illegal.