Primary hypersomnia—’Sleeping Beauty Syndrome’ — causes excessive daytime sleepiness, disorientation and inattention

Repeated job losses may be as damaging to heart health as smoking, high blood pressure, or diabetes

Airports with designated smoking areas can still expose nonsmokers to surprising levels of cigarette smoke

After decades of focusing almost exclusively on treating HIV, public health experts are finally able to add more effective prevention strategies to curb spread of the disease.

A study explores the occupations with the strongest links to breast cancer.

Widespread testing of most healthy adults would curb spread of the disease by bringing more patients into early treatment.

With growing evidence that boys, like girls, are maturing at ever younger ages, who’s ready with helpful advice?

Pacifiers are among the most dependable pieces of baby paraphernalia, but what if, instead of curing crankiness, they actually cause babies to be more unruly?

Scores of Ugandans were isolated on Thursday to prevent the spread of a new outbreak of Ebola which has already killed three people.

Pepsi’s latest refresher claims to fend off fat. But is a healthy soda an oxymoron?

It makes sense that what we’re exposed to can affect our health, including our fertility. And the latest research shows exactly how much.

Overexposure to bright light not only keeps you up at night, but animal studies show it may be linked to depressive symptoms and learning problems.