1, lowering blood pressure and protecting heart and brain.

Japanese researchers found that when participants watched funny variety shows, their blood flow in internal organs increased and their blood circulation improved. In addition, comedy movies that make people laugh will dilate blood vessels, improve blood supply to the brain and lower blood pressure within 24 hours.

2. Eliminate stress and treat depression.

Laughter not only affects physical health, but also triggers psychological reactions, which is why people feel relaxed and carefree after laughing. In a new study, scientists found that laughing once can reduce the levels of cortisol, adrenaline and Dobak by 39%, 70% and 38% respectively. Researchers say that these seemingly short-lived emotional factors may play a therapeutic role in mental illness in the long run.

3. Improve immunity

Dr. Li Boke of Los Malinda University found that laughter can reduce the level of inflammation and increase the activity of K lymphocytes (an immune cell, which plays a role in antivirus, parasites, tumors, etc.). Therefore, laughter helps to enhance the immune system function and protect the body from diseases.

Step 4 relieve pain

Through a series of experiments, the researchers found that when participants laughed with a group of people, their pain threshold increased significantly, showing better pain tolerance. Later, when the topic returned to something less funny, the pain threshold of the participants decreased. Experts say that the reason why laughter can relieve pain may be because the body releases endorphins.

5, the heat of combustion

Researchers at Vanderbilt University Medical Center in the United States said that although laughter can't replace exercise, it lasts 10 ~ 15 minutes and can burn up to 40 calories (about 0. 17 kilojoules). Not only that, laughing can also exercise the abdomen, shoulders and diaphragm.

People's Health Network-Five Benefits of Laughter to Health