The internet is full of stories about how various surveys "prove" something about a man’s penis size - it’s too big, it’s too small, it’s just right, etc. People tend to put a lot of stock in these surveys, but the fact is that the vast majority of them are not really very useful. Putting aside for the moment the fact that other factors, such as a man’s attention to his penis health, are ultimately more important than penis size, why are these surveys often unreliable?

Sample siz...


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