Laughter eases and relaxes muscle tension.
Laughing has the ability to ease tension by relaxing the muscles throughout the body, particularly the muscles of the face, neck, shoulder, and abdomen. When laughter is uncontrolled, this creates a convulsive reaction that helps loosen muscular tension and mobilize breathing.
Laughter reduces the level of stress hormones in the body.
People who love laughing and have a positive outlook on life have consistently lower levels of stress hormones. As the levels of these hormones decrease, the body becomes more relaxed and feels not just physically, but also emotionally rested.
Laughter increases HGH
Loma Linda University researchers found that even anticipating a good laugh produced an increase in HGH (an anti-aging hormone) of as much as 87%.
Laughter reduces the risk of heart disease
Laughing revives blood circulation and increases oxygenation of the blood within the body, which is especially important to your heart. This dramatic increase in blood flow can reduce the risk of stroke, cardiovascular disease, and heart attacks.
Laughing improves blood flow
In a study conducted by the University of Maryland Medical Center, the results indicated that laughter seemed to cause the endothelium (tissue that composes the lining of blood vessels) to expand, allowing for better blood flow.