Experts say being happy makes you have longer life

NEW YORK - Today's lesson: be happy, live longer. Now science seems to back the glass half-full approach.

A review of more than 160 studies on the connection between a positive state of mind and overall health and longevity has found "clear and compelling evidence" that happier people enjoy better health and longer lives.

In fact, evidence linking an upbeat outlook and enjoyment of life to better health and longer life was stronger even than that linking obesity to reduced longevity, according to the review published on Tuesday in the journal Applied Psychology: Health and Well-Being.