Maybe am wrong but, i saw that it takes 70 days for sperm to mature, that would take you not masturbating for a long while to have well developed fertile sperm.
So, masturbation makes us infertile? sure, we produce multiple millions of sperm a day but, they quality of that sperm is not to be desired. you can even say infertile levels.
Maybe there is a reason why, they told the man of old not to masturbate, and porn/hentai has warped our minds to sex. it's just observation, not pushing ideals
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correction it takes 70 to make sperm, and 14 more days to mature.
@RodrickSage
If it takes 70 days to manufacture a product & after the product is manufactured it is put in a store to sell
If someone sold all the products on display that would not mean customers would have to wait 70 days before they can come back and buy new products
The manufacturer might take 70 days to manufacture each item but they might start manufacturing new items every day
The store could get items from the manufacturer the very next day that were made 69 or 70 days ago