My best friend "Mandy" married an army guy who, a year and a half into their marriage, started using steroids.  She said his behavior was like night and day, that he became verbally and physically abusive, was totally unpredictable, and had very poor impulse control. After the usual (police,separation, reconciliation, counseling), she started talking to recovering abusers and their spouses at his meetings. She told me that most people there told her that never had they seen such a profound physical AND emotional change in such a short period of time. I told her she should meet some meth addicts, but to the point.  I totally agree that people have the right to do what they want with their own bodies, but the problem with some drugs is that they change a persons physical and chemical make up, without them realizing what is happening to them, until someone is able to point it out and unfortunately that person is usually the one who got hurt. The rules that society creates that are rarely questioned are the ones where others have the potential to be harmed needlessly. Thoughts?