Too Darn Hot to Eat Pacific Oysters

Three days of vomiting is nobody's idea of a gourmet experience, but that's what happened to 177 people since May who ate raw oysters from the Pacific Northwest. Last week, the federal Food and Drug Administration warned consumers to avoid raw Pacific oysters. The culprit is Vibrio parahaemolyticus, a bacteria that has multiplied because of unusually warm weather. "During the hot summer months, people should cook their oysters, regardless of the source," says Nancy Napolilli of the Washington State Department of Health. Cooking croaks the bad bugs.-Rachel Courtland

CPR: Stumped, Not Stressed Out

Giving CPR in a medical emergency may not be as stressful as you'd think. That's the report from 1,243 laypeople who tried resuscitation after taking a CPR class.

What was tough, they said, was recalling specific skills like checking the victim's pulse and accessibility. "Somebody's caught in a toilet stall. And you can't get them down flat, or they're really heavy," says Barbara Riegel, associate professor in the School of Nursing at the University of Pennsylvania, who led the study, in Resuscitation. Despite the challenges, volunteers say they'd give CPR again.-Jill Canada

An International Wrinkle Fighter

Savvy sun worshipers soon won't have to tote their favorite sunscreen back from overseas. The FDA recently approved Anthelios SX, with a component that has been in L'Oréal products abroad for years.

The sunscreen contains Mexoryl SX, a chemical that provides longer-lasting protection than most from ultraviolet A rays. UVA rays contribute to melanoma, the deadliest form of skin cancer, as well as to wrinkles and other age-related sun damage. (All sunscreens protect against UVB rays, which cause sunburn.) Look for it in stores as soon as next month.-Michelle Andrews