No one believes this concept more than Dr. Adams of the Gesunheit Institute in Arlington, Virginia where his unorthodoxed approach to the practice of medicine is carried out. Wellness is the sum of everything that makes us healthier. So smile, you'll feel better. Keep smiling, you'll get well sooner. Laugh and you have just increased your chances of not getting sick in the first place.
Laughter also improves a person's sense of well being and energy level by increasing oxygenation.
When ATP is increased, one's energy level is increased as well. Laughter has the same effect on the body as exercise or aerobics. This means that the individual walking down the street laughing is getting close to the same work out as the person jogging by. Humor that produces laughter provides physiologic benefits through improving oxygenation and energy levels. Laughter stimulates the skeletal, facial, abdominal and thoracic muscles.