If you have trouble keeping slim, don’t put all the blame on your DNA. People carrying so-called “obesity” genes tend to gain more weight if they don’t work out or don’t get enough sleep, said Timothy Frayling, a professor with the University of Exeter Medical School in England. “You can’t change your genes — but…  read on >

Knowing they’re at increased risk for breast cancer isn’t enough to persuade many women to get MRI screenings — even if they’re free. Researchers studied more than 1,000 women in a U.S. military health system who had a 20 percent or greater lifetime risk of breast cancer due to genetics or personal or family history.…  read on >