It is believed that this activity, initiated via creativity and social interaction rather than through comedy and humor, produces an array of positive psychological and physiological benefits ranging from simple mood elevators, to stress reduction and pain relief. These clubs are often run in groups, where eye contact and playfulness is encouraged, and where forced laughter is ideally turned into genuine, contagious laughter. Only a handful of studies have looked into the science of Laughter Yoga, but they have found that there may be a number of medical benefits associated with the activity.