I'm not sure if the excess sperm thing is true but I will say that I did strictly follow the Catholic Church's sexual teachings for a year but gave up on it when I was woken up by having an intense involuntary orgasm while I was asleep. Sexual tension needs to be released, regardless of which sex you are. Also, abstaining from something tends to kindle obsession. I was thinking about sex all the time and trying to avoid it. It was sad.Also, sperm dies. To get rid of this excess, wet dreams occur with some frequency more than in those who don't rub one out or have regular sex. Masturbating is a great way to ejaculate dead sperm to make room for healthy sperm. What girls and women get out of ovulating and menstruating monthly, boys and men get from jacking off. Just as eggs are only viable for so long and need to be replaced, so are sperm, and those dead sperm need to be had rid of to give room to healthy cells.