May be: Happy people in general live longer, which includes smiling and having a positive attitude.
Answered 2/16/2013
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The How of Happiness: Book reported 180 women entering the school sisters of notre dame as nuns in 1932 wrote autobiographical sketches. The amount of positive feeling expressed in the narratives predicted longevity. 90% of the most cheerful were alive at age 85 versus 34% of the least cheerful. Similarly, 54% of the most cheerful quarter were alive at age 94, as opposed to 11% of the least cheerful.
Answered 6/12/2015
5.4k views
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