Laughter and Relaxation
A good sense of humor can't cure all ailments, but it can help you relax, help you deal with stress and help you feel better.
When you laugh, it not only lightens your mental load but also causes positive physical changes in your body. Laughter fires up and then cools down your stress response. So read some jokes, tell some jokes, watch a comedy or hang out with your funny friends
----The Mayo Clinic