Laughter is also the best medicine. .

"After laughing, you have a relaxation response (in your body). Everything goes down—heart rate, blood pressure, your muscles relax," says Mary Bennett, PhD, APRN, whose research has investigated how humor and laughter affect physical and psychological well-being.

Studies show that laughter can: lower inflammation levels in people with rheumatoid arthritis; improve levels of good (HDL) cholesterol and reduce inflammation in diabetics with high blood pressure and high cholesterol; decrease stress and pain; and expand blood vessels and increase healthy blood flow."