Having sex every day improves the quality of men's sperm and is recommended for couples trying to conceive, according to new research.

An experimental spray-on anesthetic may be the cure for many men suffering from premature ejaculation, increasing the time to orgasm more than six-fold, according to new findings to be presented this week.

Football star David Beckham and actors Sean Connery and Keanu Reeves were Saturday being illicitly used to promote a sex drug in an advert being shown on TV stations around China.

China on Sunday launched a national sex education campaign aimed at breaking traditional taboos and getting more people to seek treatment for sexually transmitted diseases and infertility.

Seductive chemicals are hidden in sloppy kisses, scientists say, but even the most chaste caress can spark an intense hormonal response.

Researchers say they have developed a cream that might prevent herpes infection for as long as a week — a potentially big step in protecting women from the sexually transmitted infection.

Young gay people whose parents or guardians responded negatively when they revealed their sexual orientation were more likely to attempt suicide, experience severe depression and use drugs than those whose families accepted the news, according to a new study.

Women who suspect a man of having sex on the brain should listen out for a sneeze, as a pair of British doctors say that sneezing may be a sign of arousal.

Female Health Co’s new, potentially less costly version of its female condom, won crucial backing from a U.S. Food and Drug Administration advisory panel on Thursday.

A new, potentially less expensive version of the female condom faces U.S. regulatory review this week when a Food and Drug Administration advisory panel weighs whether they adequately prevent pregnancy, HIV and other sexually transmitted diseases.