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"Any exposure [to heat] that significantly increases temperature is likely to affect spermatogenesis [or sperm production]," says Dr. Jorge Chavarro, associate professor of nutrition and epidemiology at Harvard T.H. Chan School of Public Health, and an author on the study. "That's the main reason we have scrotums and testes that are external to the abdomen." By hanging below the torso, testicles stay cooler — by about 4 to 6 degrees, typically — than the rest of the body. That helps them make happy, functional sperm cells. But when you slap on a pair of briefs, that natural cooling system is disrupted. Your dangly bits are held close to your abdomen and they heat up, harming sperm production. www.npr.org...
The temperature of the testes is at issue: In order for testes to produce sufficient quality and quantity of sperm, the temperature of testes must be lower than the core body temperature. "That is why [testes] are located outside of the body," explains Celia E. Dominguez, reproductive endocrinologist, Center for Reproductive Medicine at the Emory University School of Medicine. "Testes were made to be out in the breeze." Testes can overheat when a man wears brief underwear. If the testes are too hot -- several degrees above where they should be -- they are not able to produce sufficient sperm, resulting in low sperm count. www.webmd.com...
Although men continue to make fresh sperm, the quality decreases with age. So contrary to popular belief, men over 40 are about half as fertile as men under 25. This means it may take longer for their partner to become pregnant. www.bbc.co.uk...
originally posted by: DBCowboy
a reply to: IgnoranceIsntBlisss
Couple that with high levels of estrogen in the water supply and you've got yourself a problem!
originally posted by: Allaroundyou
originally posted by: DBCowboy
a reply to: IgnoranceIsntBlisss
Couple that with high levels of estrogen in the water supply and you've got yourself a problem!
Gay bombs???
originally posted by: IgnoranceIsntBlisss
Tight pants are population control.
originally posted by: Skyfloating
originally posted by: IgnoranceIsntBlisss
Tight pants are population control.
Baggy pants are population degeneration.
originally posted by: Zanti Misfit
a reply to: DBCowboy
Geez , Thank God Today's " Man " Doesn't have Camel Toes..........