Sleep Habits Vary by Ethnicity
Sleep problems and sleep habits vary among different ethnic groups, according to a new national survey. But among all ethnicities, there remains a common denominator: Many of us simply don't get enough sleep.

Platelet-Rich Plasma Helps Tennis Elbow
Platelet-rich plasma -- injections of a patient's own blood platelets -- heals of tennis elbow better than cortisone shots, a study finds.