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97. Sarah Hart-Unger on Planning for Health + We Are the Average of Those Around Us

Wellness While Walking

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The Effect of a Friend of a Friend on Happiness

If a friend of ours becomes obese, we are forty five % more likely than chance to gain weight over the next two to four years. And that's true whether we know our friend's friend or not. Similar dynamics were found on other dimensions, like in terms of smoking. Having happy friends is associated with our being happier.

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