AP - Scientists working to help astronauts regain balance after extended flights in zero gravity say they've found a way to use the research to help elderly people avoid catastrophic falls.

AP - Mexican agriculture officials said Thursday that U.S. colleagues hunting for the source of a salmonella outbreak are rushing to a conclusion about finding the strain at a Mexican pepper farm.

AP - The homeless woman was nauseated, dizzy, drenched with sweat, dehydrated and sobbing with fear. She had heat exhaustion and was on the verge of heat stroke. But she had come to the right place, a church turned into a refuge from the overpowering heat.

AP - Here's a couch potato's dream: What if a drug could help you gain some of the benefits of exercise without working up a sweat? Scientists reported Thursday that there is such a drug — if you happen to be a mouse.

AP - Here's a couch potato's dream: What if a drug could help you gain some of the benefits of exercise without working up a sweat? Scientists reported Thursday that there is such a drug — if you happen to be a mouse.

AP - President Bush signed legislation Wednesday that triples U.S. funding to fight AIDS, malaria and tuberculosis around the world.