Are happy, optimistic people healthier than their pessimistic peers? The short answer: Yes.
According to a study published in "Applied Psychology: Health and Well-Being," maintaining a positive attitude may help us live healthier, longer lives. Researchers found that people with generally positive moods had lower levels of stress-related hormones, which are linked to lower blood pressure, and a lower risk of developing chronic diseases, including heart disease. And in an additional study conducted at the Mayo Clinic in 2002, researchers found that happy people reduced their risk of a premature death by 50 percent compared to their more cynical counterparts.