Simple facts about laugh

hi guys! i want to tell you simple facts about laugh.. because laugh is very easy you know..

laugh is healthy and easy. we don't need a lot of energy to do that activity than sullen ^^

1. Laugh for 10-15 minutes can burns a lot of calories
2. Laugh 17 minutes per day belived it can extend our life a day
3. People may laugh because humans have the power of imagination and memory to laugh.
4.  Laugh can push the activity of the gland in the body.
5.  Laugh is the medicine for pain and natural tranquilizer.
6.  Laugh can help the digestive process and accelerate blood circulation. 
7.  In Japan, once on the inventions of research on the effects of laughter. In this study need 19 people and four of them who suffer from cancer and heart problems. They were asked to watch a comedy drama for 3 hours. The result, anti-cancer cell in 4 poeple body's were more active work. 
8.  People are often angry can remove toxic yellow liquid which is derived from the breath freezing with liquid nitrogen. According to the study of people angry over an hour are capable of killing 80 people. 
9. When human is smiling they can make 15 muscle is moving and if the human is sullen they can make 43 muscle is moving 

so, you choose to laugh or sullen???^^