Washington, DC - Researchers at the National Institutes of Health have found a duplication of a short stretch of the X chromosome in some people with a rare disorder that causes excessive childhood growth. They believe that a single gene within the region likely has a large influence on how much children grow. The research comes from a lab at NIH’s Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), which seeks to understand growth.

Washington, DC - Nearly 55 percent of U.S. infants are placed to sleep with bedding that increases the risk of sudden infant death syndrome, or SIDS, despite recommendations against the practice, report researchers at the National Institutes of Health, the Centers for Disease Control and Prevention, and other institutions.

Rochester, Minnesota - Android users no longer have to miss out on all the research discoveries coming from Mayo Clinic. The newest issue of Discovery’s Edge, Mayo Clinic’s research magazine, is now available on all Android devices, as well as the iPad, online and in print. Research news from Mayo Clinic - however, whenever and wherever you want to read it.

Scottsdale, Arizona - The holiday season often brings unwelcome guests - stress and depression. And it's no wonder. The holidays present a dizzying array of demands - parties, shopping, baking, cleaning and entertaining, to name just a few.

Scottsdale, Arizona - Herbal supplements are natural, so they must be safe, right? Not necessarily. Herbal supplements can have strong effects in the body, and some can interact with prescription medications used to treat heart and circulatory problems, such as high blood pressure and heart failure. Some of these interactions can even be dangerous.

Imperial, California - You can get an effective aerobic workout with both an elliptical machine and a treadmill. In general, you can let your fitness goals determine whether you choose an elliptical machine or a treadmill - or a different piece of exercise equipment.