When you focus your attention on positive thoughts, ideas and images, you feel better. The link between a positive attitude and good health is well-documented. In the July 2003 issue of Psychosomatic Medicine, researchers interviewed more than 300 healthy people three times a week for two weeks to assess their emotional states. Then they exposed them to the germ that causes the common cold. The study found that people with a positive attitude were less likely to catch colds than those who were depressed, nervous or angry. The study also found that uptight or sad people are more likely to complain of cold symptoms, even when they don't have a cold. Find out how you can become a more positive person starting now.