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.


Ron Gutman
Ron Gutman is the founder and CEO of HealthTap, a personalized health-info site that's currently in beta. He's also the organizer of TEDxSiliconValley.
http://www.ted.com/speakers/ron_gutman.html

Seth Godin
Seth Godin is an entrepreneur and blogger who thinks about the marketing of ideas in the digital age. His newest interest: the tribes we lead.
http://www.ted.com/speakers/seth_godin.html


In a world of too many options and too little time, our obvious choice is to just ignore the ordinary stuff. Marketing guru Seth Godin spells out why, when it comes to getting our attention, bad or bizarre ideas are more successful than boring ones.

Al Gore's new thinking on the climate crisis

Once the US Vice President, then star of An Inconvenient Truth, now Nobel Peace Prize winner, Al Gore found a way to focus the world's attention on climate change. In doing so, he has invented a new medium -- the Keynote movie -- and reinvented himself.




In this brand-new slideshow (premiering on TED.com), Al Gore presents evidence that the pace of climate change may be even worse than scientists recently predicted. He challenges us to act.

Motivation and Learning