Want a free, painless way to appear more competent, reduce stress, and increase your lifespan?  In this week’s Video of the Week, entrepreneur Ron Guttman cites research that supports the argument that smiling can achieve all of that and more in his TED Talk, “The Hidden Power of Smiling."

[youtube=://www.youtube.com/watch?v=U9cGdRNMdQQ&w=854&h=480]