A look at important medical, health and science headlines for the week of May 7.
Synopsis: Researchers are learning that tears shed for different reasons are chemically different. Emotional tears, for example, contain high levels of stress hormones, indicating they may be a way for the body to reduce stress. Experts discuss why it's good for people to cry. Host: Nancy Benson. Guests: Dr. William Frey, University of Minnesota … Continue reading 15-33 Segment 2: The Power of Tears