Dutch doctors say "these so-called 'swingers'" use too many recreational drugs, lowering their inhibitions and leading to a high risk for STDs.

Early humans in the Arctic evolved to their high-fat diets and the extreme cold. But today, those adaptations are causing high infant mortality and low blood sugar.

Latin women have always had a lower risk of breast cancer than other ethnic groups, and now doctors have discovered why: a variation of a single gene.

MDMA is the drug of choice on college campuses because it gives a huge high and inhibits sleep. But that's not all it does.

Enterovirus patients in Africa, Asia and South America are more likely to get Type 1 diabetes, suggesting genes aren't the only cause of the disease.

Saving a drowning motorist, rushing into a burning building, stopping an armed attacker. Yale psychologists wanted to find out what makes everyday people do heroic things.

The World Health Organization is weighing in on energy drinks, calling them a public health risk that needs more oversight.

A new survey shows that more than a quarter of Americans see Ebola as a major public health threat, despite the fact only one victim developed symptoms in the country.

The pull of an MRI machine's magnets can be dangerous, and even fatal. A group of scientists made a video that shows why.

A study found that 93 percent of all new parents commits a "critical error," putting their babies in danger on the first ride home from the hospital.

Women who treated themselves to fried food every day were more than twice as likely to get gestational diabetes than women who avoided it.

A mortician explains the process of alkaline hydrolysis, which many people believe means "dipping grandma in acid." She assures us it does not.