Sleeping Naked: A Bare-Bottom Approach to Better Health
4. Male Reproductive Health
Disrobed repose can boost sperm count in men. The best temperature for sperm production is slightly below body temperature. Underwear that holds the testicles close to the body may increase the temperature of the testes. A 2016 study published in Andrology found that men who slept without briefs or boxers had a higher sperm count and quality than those who wore undergarments while sleeping.
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