"Mirthful laughter is the equivalent of internal jogging because it can lower blood pressure, stress and boost the immune system, much like moderate exercise," he explained.
On the other health benefits of laughter therapy, Sahgal said: "People practising laughter therapy report several positive changes. Many diabetics have switched to pills from insulin after laughter therapy."
He said shared laughter is one of the most effective stress-busting tools and fake laughter turns into real after a few months.
People practising laughter therapy say they have seen tremendous change in their lives for the better.
"Laughter provides instant relief and gets you out of depression. Dealing with criminals day in and day out made me so stressed that I became like a robot. I have been practising laughter yoga for past few months and it has made me happier and calm," a senior officer of the Delhi Police Crime Branch told IANS.
