Top 5 reasons you need to laugh:
1. Laughter relieves emotional stress.
2. 15 minutes sum of laughter a day will burn about 10-40 calories.
3. Laughter activates the immune system.
4. Laughing temporarily relieves chronic pain such as arthritis.
5.The act of laughing provides cardiac, abdominal & diaphragmatic conditioning.
... Laughter is the best medicine