Practices such as Laughter Yoga and the Laughter Wellness method help you feel at peace and good about yourself in the present moment, for no particular reason. They give you the ability to laugh at things that previously would have caused stress or anger, along with the ability to experience a new sense of forgiveness.
"It is proven that those who are optimists usually have at least 20 percent better relief of their pain without any medication (than those who are not optimistic). On the other hand, those who are pessimists have at least 10 percent worse result than the average patients who are not thinking negatively."
Iranian capital's city council hopes to lighten mood left in city following post-election crackdown by opening laughter classes – despite it being frowned upon in Islamic law.