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U.S. researchers found that when men reach sexual maturity in settings where they far outnumber women, they live an average of three months less than males from areas with a more equitable gender ratio.

Menstrual cramps are often dismissed as a mere nuisance, but new research suggests the monthly misery may be altering women's brains.

Girls are hitting puberty earlier than ever, a change that puts them at higher risk for behavior problems now, cancer problems later, a study ...

Mind-numbing headaches are more likely to strike as the mercury rises, a recent Harvard University study says. But the heat may not be the only perpetrator at play.

When women have a miscarriage, one of the first questions they often ask is how long they should wait before getting pregnant again.

A rare sun-like star that is both young and relatively close to Earth has been found to be harboring an even weirder object - a failed star locked in a close orbit around its host, according to a new study.

A new study found students with better teachers learned more in kindergarten — and earned more as young adults.

A large asteroid in space that has a remote chance of slamming into Earth would most likely hit in 2182, if it crashes into our planet at all, a new study suggests.

Women who spent six hours a day sitting had a 37% increased risk of dying versus those who spent less than three hours a day on their bottoms. ...

A new topical gel has shown promise in helping to protect women from HIV infection, according to a study being presented at the International AIDS Conference in Vienna, Austria.