When it comes to baby-making potential, it's not the size of the boat, or even the motion of the ocean. It's the length of the AGD, the area between the anus and the underside of the scrotum. (Sorry, t'aint no other way to say it.) A study published in the journal of Environmental Health Perspectives, revealed that men with AGDs shorter than 2 inches were less fertile than those with longer sub-scrotal areas. In other-words, the shorter the AGD, the lower the sperm count. That's not to say it's a rule across the board, but researchers suggest it could be a signal for hopeful dads to book a fertility screening. What the researchers haven't looked into is the awkward geometry of taking measuring tape to your own middle earth.
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