either of the two could be the likely cause and in combination the odds are even higher. but you act as if steroids does no damage to your heart.
http://sportsillustrated.cnn.com/si_online/special_report/steroids/
But they also have several side effects, such as heart and liver damage, endocrine-system problems, elevated cholesterol levels, strokes, aggressive behavior, and the shrinkage and dysfunction of genitalia.
http://www.usatoday.com/sports/baseball/stories/2002-07-08-steroids-focus.htm
Long-term consequences may include stroke, heart attack, high cholesterol and liver tumors, says Wadler, who notes there are reports in medical literature of 15-20 premature deaths and a similar number of heart attacks in people in their 20s and 30s who used steroids. When used by adolescents, steroids can permanently stunt growth.
http://www.theglobalist.com/DBWeb/StoryId.aspx?StoryId=3783
Massive health problems
The reason why those substances are illegal in the first place is because they can have very serious side effects. They can turn superhuman athletes into wrecks in just a few short years after their careers come to an end.
Problems affecting habitual anabolic steroid users include high blood pressure at an early age, heart disease, damage to the liver, urinary and bowel problems, strokes and blood clots — and difficulty sleeping. Infertility among women and impotence among men are also common.
