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Ha! Laughter really is the best medicine

Scott Weems, author of "Ha! The Science of When we Laugh and Why," speaks with CNN's Dr. Sanjay Gupta.

Mon Jun 23, 2014 @ 12:31:58 pm ET via CNN Video
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About

I’m a father of three, a practicing neurosurgeon, and a globe-trotting journalist. Join me as I go beyond the headlines, and offer insight to stories that shape the quality of life for you and your family. FULL BIO

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