DW: Explains why there are so many D!(%heads out there on the road!
Dr. Michael Eisenberg, a male fertility specialist at Stanford Medicine, says that the length of penises has grown 24% over the last 30 years, and he says that could be a bad thing.
Sperm count and testosterone have been shown by other studies to be dropping, which led Dr. Eisenberg to conduct his study. The research used data from 75 studies conducted between 1942 and 2021 on almost 56k men. And the answer to the question you’re thinking? They found that the average length across all regions is 5.5 inches.
Source: USA Today