That's Fit

According to a study published recently in the Mayo Clinic Proceedings medical journal, people who view their glass as half full will probably live longer than those who see it as half empty. Researchers followed almost 7,000 adults since the 1960s, and found that the pessimistic participants were 42% more likely to die of various causes than their optimistic counterparts.

The reasons behind these results could be any number of things -- like the fact that optimistic personalities are less likely to suffer from depression, and are more likely to take care of themselves by making healthier lifestyle choices.

This isn't the first study to show that a positive attitude can extend your life expectancy, so if you're naturally a pessimist is there anything you can do? Doctors warn that it can be difficult to make changes in your core personality, but not impossible. Studies have shown that therapy and meditation are both effective ways of increasing positive emotions and changing your outlook for the better.