First the American teenager survived a rare cancer. Then she wanted to study it, spurring a study that helped scientists find a weird gene flaw that might play a role in how the tumor...

Scientists say the mysterious MERS virus has been infecting camels in Saudi Arabia for at least two decades, and early human cases probably went undiagnosed.   Since the Middle East...

A saliva test for teenage boys with mild symptoms of depression could help identify those who will later develop major depression, a new study says.   Researchers measured the stress hormone...

A Canadian study that many experts say has major flaws has revived debate about the value of mammograms. The research suggests that these screening X-rays do not lower the risk of dying of breast...

Using videos or flash cards to teach tots may not be the best idea. Simply talking to babies is key to building crucial language and vocabulary skills — but sooner is better, and long sentences...

Researchers say they have found new evidence that Greece's financial crisis is taking a toll on the health of its citizens, including rising rates of HIV, tuberculosis, depression and even infant...

Women have a higher risk of blood clots that can cause strokes, heart attacks and other problems for 12 weeks after childbirth — twice as long as doctors have thought, new research...

A special blend of mother's milk just for girls? New research shows animal moms are customizing their milk in surprising ways depending on whether they have a boy or a girl.   The...

Russian men who down large amounts of vodka — and too many do — have an "extraordinarily" high risk of an early death, a new study says.   Researchers tracked about...

America's large food companies are trying to head off efforts to enact mandatory labeling of genetically modified ingredients by proposing new voluntary labels nationwide.   The food...