The hidden power of smiling

7:10

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.

All Featured Videos
The hidden power of smiling

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.