The final testosterone killer is sleep deprivation.
Americans average just 7 hours of sleep while Europeans get 8 hours nightly.
Matthew Walker, the world's leading sleep scientist, explains exactly how this sleep gap is castrating American men:
As a reminder,
The US has had 46 presidents. Among them, there have been 91 criminal felony charges indicted. Those charges are distributed among the presidents as in the following list:
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