Without fish oil, his swimmers get stuck.

The best way to reduce the risk of HIV transmission is to lower the amount of the virus in the blood.

Women in a recent survey reported increasing satisfaction with their sex lives as they aged.

Whether or not we like certain perfumes depends on our genes, a new study says. Your preference for a "vanilla" scent...

Testosterone treatments help men gain muscle and lose fat, a new study says, but researchers say the risks of heart p...

Raised blood alcohol levels results in an increase in the self-reported likelihood of engaging in unprotected sex, a ...