A study of white married couples in the U.S. -- the majority of who were born in the 1930s -- concluded that spouses are more genetically similar to each other than they are to random individuals.
Everyone loves a medical mystery, except the afflicted patient and his or her family who shuffle from doctor to doctor in search of an explanation for a disorder whose name, origin, prognosis and cure are all unknown. Now, the National Institutes of Health have underwritten a nationwide...
Forget climbing Mt. Everest ? for most humans, just eking out a living on the harsh Tibetan plateau is challenge enough. But Tibetan people have thrived there for thousands of years, and a new study says it's thanks to a genetic adaptation they inherited from an ancient human relative.
Writers, artists and historians have long pondered what it means to be Mexican. Now science has offered its answer, and it could change how medicine uses racial and ethnic categories to assess disease risk, testing and treatment.
After an American GI is wounded in combat, his or her life depends on the speed of evacuation, the degree to which blood loss can be stanched, and the skill with which military surgeons can clean, patch and stitch.