Give Your Body a Boost -- With Laughter

This article talks about the benefit of laughing; they aren't sure whether it's the act of laughing or the emotional response, but undoubtedly laughing is beneficial for you.  This article compares laughing to a mild workout and claims that the effects of laughing are the same in reference to endorphins, blood pressure and other chemical and physical responses.  Laughing has also been noted to lower blood sugar levels and effect sleep and relaxation. http://women.webmd.com/guide/give-your-body-boost-with-laughter