September 11, 2012 Too many bad nights' sleep can raise the risk of heart attack and high blood pressure. Researchers say highway noise should be added to the list of environmental pollutants.
September 7, 2012 Nearly a third of spending on health care in the U.S. is wasted. There's lots of inefficiency, excess overhead and some outright fraud, too. But the biggest slice of the waste pie is unnecessary care.
September 6, 2012 There are conflicting guidelines on when women should get mammograms and mounting questions on when the PSA blood test for prostate cancer is worthwhile. We asked how people are sorting things out.
August 29, 2012 So far, two Missouri farmers are the only known cases of the tick-borne virus in the world. But experts are sure they'll find more. The men recovered but suffered serious illness that required hospital care and weeks of convalescence.
August 29, 2012 Every state except Alaska and Hawaii has reported West Nile virus in people, birds or mosquitoes. The Centers for Disease Control and Prevention expects human cases will rise through October. In Texas, the worst-hit state, deaths reached 31.
August 28, 2012 If human newborns came out as fully developed as chimp babies, human pregnancy would have to last at least twice as long. In a new theory, researchers argue that how much energy mothers can spare is the key factor in how long pregnancy lasts.
August 23, 2012 Federal and state health investigators have identified outbreaks of skin infections linked to tattoos in four states. At least 14 people in New York were infected by ink that was apparently contaminated during manufacturing.
August 22, 2012 Icelandic scientists have found solid evidence that older men have more random mutations in their sperm cells. They're warning that can cause autism, schizophrenia and a long list of other genetic diseases in their offspring. Their findings are reported in the journal Nature.
August 8, 2012 Scientists have learned that compact fluorescent light bulbs could give off ultraviolet radiation if their inner coating cracks. Light-emitting diodes, another eco-friendly lighting option, won't give you a sunburn, but they do have the potential for other mild health effects.
August 6, 2012 If the London Olympics opening ceremony's tribute to the National Health Service is any indication, Brits are pleased with their health care system. But what would greet an American at a hospital in the U.K.?