Original
Laughter has many health benefits. Laughter stimulates the immune system. Laughter activates germ-killing T-cells and speeds up the manufacture of new immune cells. Laughter makes us feel good and have a better sense of well-being by pumping extra adrenaline into
our bloodstream and bringing on a rush of endorphins, the body's natural painkillers. Laughter greases the mental gears and stimulates creative thinking. Laughter exercise the heart, the lungs, and the muscles inf our upper body and back. Most important, laughterreduces or eliminates stress. Laughing a hundred times a day may definitely keep the doctor away.

Vary
Laugh in suitable places bring many health benefits. It stimulates the immune system.
First, smelling activates germ-killing T-cells and speeds up the manufactures of new immune cells. Second, smelling makes our body has enough adrenaline into our bloodstream. It also brings rush of enforphins which are needed as our body's natural painkillers. Then, laughter
not only greases the mental gears of our body but also stimulates creative thinking. It also exercise the heart, the lungs, and the muscles in our upper body and back. However, the most important is laughter reduces or eliminates stress. Laughing a hundred times a day may definitely keep the doctor away.