Interestingly, the net result of long-term zinc depletion would be "growth problems and poor eye-sight. So the old wives' tale about masturbation may be true after all! In the 18th century it was said that masturbation could make you mentally ill. Now we also know that zinc deficiency can cause depression, so, if you find yourself feeling low the day after a lot of sex, now you know why. There is another view of depletion via sex, concerning your vital energy, known as chi or ki in East Asian traditions. As you' d expect, there' s a lot of chi in sperm, and it' s lost in the process of orgasm. It' s possible that women may also experience a loss of vital energy this way.

But let' s not forget the massive plus side: sex is a great way to feel connected, and a fantastic relaxant. You' ll just need to monitor how you feel the next day - more tired or more energized. My verdict is everything in moderation, including moderation.