An ultrasound showed one of Sarah Gray's unborn twins was missing part of his brain, a fatal birth defect. His brother was born healthy but Thomas lived just six days. Latching onto hope for something...

More federal money finally is available to fight Zika even as the news worsens. Babies who at first seem to have escaped the virus' devastating hallmark defect - an abnormally small head at birth -...

More are using marijuana, using it more often and far fewer think it's risky, the government survey found. That's understandable, experts say, as dozens of states now...

Scientists trying to predict the future path of Zika say that 2.6 billion people living in parts of Asia and Africa could be at risk of infection, based on a new analysis of travel, climate and...

Health officials warn that electronic cigarettes and other vaping devices are poisoning kids with nicotine. But new research suggests that most teens aren't vaping nicotine at all but using sweet and...

The database, with genetic codes from more than 60,000 people, is aimed at researching rare diseases that are generally caused by a single malfunctioning gene. Most of these diseases are so uncommon...

True or false: Electric fans are a cheap and effective way to stay cool during extreme heat waves. A tiny new experiment in older adults suggests the answer may not be as simple as it seems. It's...

Where you live plays a big role in staying independent as you age. Now researchers say an innovative program that combined home fix-ups and visits from occupational therapists and nurses improved...

A fourth U.S. person has been diagnosed with bacteria resistant to a last resort antibiotic, but researchers are expressing relief that so far these superbug precursors have not spread to...

A new report outlines a scientific roadmap for the White House's cancer "moonshot" initiative - urging research to harness the power of immune-based therapy, and to better tailor treatment by helping...