Ok, so I came across this article on Yahoo News, and the obvious conclusion hit me right in the eye. Evolutionarily speaking, men who masturbate have an advantage over men who do not masturbate. The article does not suggest my conclusion, but it seems obvious from the facts given. Here are some facts/quotes given in the article:
- Men with low sperm counts can significantly reduce sperm quality by holding back for longer than a day or two.
- In men with low sperm counts, the researchers found the volume of semen increased after prolonged abstinence, but the quality got gradually worse the longer the men held back.
- "What you really want to do is flush the system out so that the sperm that are there are fresh."
From which I conclude: Men who masturbate daily will be more fertile than men who do not have any type of daily release. Your male ancestors were likely chronic masturbators.