Psychologist Susan Pinker explains society’s need for face-to-face contact

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New research shows relationships are just as critical as diet, exercise and managing stress when it comes to survival. Psychologist Susan Pinker says chatting with friends face-to-face instead of on smart phones serves important biological functions. Learn more about her book,THE VILLAGE EFFECT: How Face-to-Face Contact Can Make Us Healthier, Happier and Smarter.