There are many physiological benefits of laughter –
Increased circulation caused by an increase in pulse rate and respiration (increasing oxygen to the tissues) and the stretching of the body’s muscles required to laugh.
Promotes relaxation – a sense of well-being that can last as long as 45 minutes after the muscles have stretched and the oxygen levels in the body have increased. There is also a reported decrease in stress related hormones.
The increased oxygen levels in the blood also benefits brain function. More oxygen is delivered to the brain, enhancing concentration, clarity and memory.
Increases pain tolerance – laughter releases endorphins which act as a pain reliever.
Laughing is Heart Healthy – people who take a lighter view of things tend to have less stress than those who cannot see the humor in life’s stresses. Not being able to see the bright side plagues as 40% of patients with heart disease.
Laughter improves the immune system and releases critical antibodies that are an aid in anti-tumor defense.