Laughter is the best ... exercise? (Video)

I'm sure you've heard the expression 'laughter is the best medicine' before. But according to one fitness professional, laughter is the best workout too. Take a look at this video from Kerry Beard. It's not a joke -- the workout is based on the idea that laughing not only makes you feel good, it can help you get fit too.

I think this is a great idea -- how fast would a fitness class go by if you were laughing hysterically the whole time? Still, I think it would be hard to find things to laugh about.

Your thoughts?

(via Fitsugar)