San Francisco scientists say they've determined why astronauts become sick so easily: weightlessness in space prevents some immunity genes from wo...
Obesity surgery, which is fast becoming a popular way to battle the nation's weight crisis, may be a lot riskier than most patients realize. New r...
Most people often dream at night. When they wake in the morning they say to themselves, "What a strange dream I had! I wonder what made me dream ...
Researchers have identified a protein that could help in the early detection of a rare but deadly chest cancer caused by asbestos exposure, a study sa...
The Aids virus can continue to damage the brain, attacking regions that control movement, language and feeling, even when patients are receiving the m...
A little red-eyed frog could hold the key to ending the scourge of AIDS.Scientists have found that a chemical in the skin of the Australian red-eyed t...
Rats can use the rhythm of human language to tell the difference between Dutch and Japanese, researchers in Spain reported. Their study suggests that ...
Two space observatories have provided the first strong evidence of a supermassive black hole stretching, tearing apart and partially gobbling up a sta...
1. Your stomach has to produce a new layer of mucus every two weeks otherwise it will digest itself. 为了防止把自己消化掉，你的胃不得不每隔两周就造出一层新的粘膜。 2. Owls are the o...
All life on our earth depends, in one way or another, on the sun. Without its light and warmth, there would be no life. The sun gives us our food and ...