Exercise may protect girls from future breast cancerGet your daughters off the couch: New research shows exercise during the teen years—starting as young as age 12—can help protect girls from breast cancer when they're grown. Middle-aged women have long been advised to get active to lower their risk of breast cancer after menopause.

Disclosing drug makers payments to docs gets boostLegislation that would require prescription drug makers to disclose payments to doctors got a boost Tuesday when Eli Lilly and Co. broke ranks with the industry and endorsed the bill.

Study: Older brains don't benefit from painkillersResults from a large government experiment are dimming hopes that two common painkillers can prevent Alzheimer's disease or slow mental decline in older people.

Nagging via text messages to help teens remember meds4gt yr meds? Getting kids to remember their medicine may be a text message away. Cincinnati doctors are experimenting with texting to tackle a big problem: Tweens and teens too often do a lousy job of controlling chronic illnesses like asthma, diabetes or kidney disease.

Genetically modified human embryo stirs criticismNews that scientists have for the first time genetically altered a human embryo is drawing fire from some watchdog groups that say it's a step toward creating "designer babies."