Unmarried men and women have a higher risk of having and dying from a heart attack regardless of age, a new study finds.
Some people who’ve had a stroke can receive a clot-busting drug up to 4.5 hours after their symptoms begin, according to new guidelines from the American Heart Association.
CAPE CANAVERAL, Florida (Reuters) – Space shuttle Columbia’s flying days came to an abrupt and tragic end on February 1, 2003, when damage from a broken wing crescendo, dooming the seven astronauts aboard. Although Columbia now lies in pieces, its mission is not over. The recovered wreckage, painstakingly retrieved from Texas and Louisiana for months after the accident, was preserved for a unique archive and education program at the Kennedy Space Center in Florida. …
The Aztecs who conquered the city of Xaltocan in ancient Mexico around 1435 may have fundamentally changed the genetic makeup of the people who lived there, new research suggests.
Owls don’t need eyes in the back of their heads to see what’s behind them — they can just swivel their heads all the way around. In fact, many owl species, such as the barred owl, can rotate their heads 270 degrees in each direction, which means they can look to the left by rotating all the way to the right, or vice versa.