Scientists say they've located the first well-documented genetic glitch that increases a man's risk of impotence, a step that might someday lead to new treatments. Most impotence isn't caused by...

U.S. health officials reported a jump in cases of a rare paralyzing illness in children, and said it seems to be following an every-other-year pattern. At least 62 cases have been confirmed in 22...

A bone-strengthening drug given by IV every 18 months greatly lowered the risk of fracture in certain older women, a large study found. The results suggest these medicines might help more people than...

It may be too late to stop Alzheimer's in people who already have some mental decline. But what if a treatment could target the very earliest brain changes while memory and thinking skills are still...

An estimated 80,000 Americans died of flu and its complications last winter — the disease's highest death toll in at least four decades. The director of the Centers for Disease Control and...

When emergency tests showed the telltale right-sided pain in Heather VanDusen's abdomen was appendicitis, she figured she'd be quickly wheeled into surgery. But doctors offered her the option of...

Drinking too much alcohol killed more than 3 million people in 2016, mostly men, the World Health Organization said. The U.N. health agency also warned that current policy responses are not...

In life, timing is everything.  Your body’s internal clock – the circadian rhythm – regulates an enormous variety of processes: when you sleep and wake, when you’re...

Early, partial results from a historic gene editing study give encouraging signs that the treatment may be safe and having at least some of its hoped-for effect, but it's too soon to know whether it...

Surgeons turned down Terra Goudge for the liver transplant that was her only shot at surviving a rare cancer. Her tumor was too advanced, they said — even though Goudge had a friend ready to...