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The hidden power of smiling - Ron Gutman

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8,758 Questions Answered

TED Talk

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Ron Gutman reviews a raft of studies about smiling, and reveals some surprising results. Did you know your smile can be a predictor of how long you'll live -- and that a simple smile has a measurable effect on your overall well-being? Prepare to flex a few facial muscles as you learn more about this evolutionarily contagious behavior.

Using ultrasound technology, researches can see that ________.

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