Apparently, men who wear boxers have a higher sperm counts than men who wear briefs, according to a recent study from the Journal of Human Reproduction. In the largest, most in depth study to date, researchers found that boxer wearers have 17% higher sperm count than those who wear briefs and 25% high sperm concentration.
“Underwear, its parameters, and its relationship to semen quality have been under investigation for decades,” Dr. Lidia Minguez-Alarcón, lead author and researcher at Harvard University’s Department of Environmental Health, told ABC News.
“The distinguishing feature of our study is that we specifically evaluated reproductive hormones and how they are affected by underwear,” she said.
“We confirmed that underwear matters in terms of testicular function and reproductive hormones and evaluated the compensatory mechanisms involved that counterbalance lower sperm counts.” (abc)
source – abc