Why can't boxers have sex?

[SimonH]

Is it because of the energy they use up having sex or does the body get sluggish/tired after you ejaculate?

Why?

Urban Myth, I would not do it the night before a fight, but apart from that, there is no medical proof it affects performance negatively.... boxing training is good for you

Yeah, I don't think it's bad if you do it once in a while, but I know that sex uses a lot of energy.

You are doing it wrong then!!!