Why did muhammed ali abstain from sex for months before his fight?

Common Practice: It is a long-standing belief among fighters that sex weakens the legs. I have known boxers who believed that sex before a fight was a good thing because it sharpened the reflexes. I suppose it's worth experimenting to find out. Just don't do your first experiment around an important fight.

Focus: When coaches advise athletes to avoid sex, the real reason is usually to avoid all the emotional entanglements, turmoil, and drain that sex outside of a permanent relationship tends to generate. Whether one strives to achieve in athletics or academics during the peak years (teens and twenties), sex is always a major distraction, as wonderful as relationships are.