Humorously science has also discovered that laughing is good for your health. The endorphins released are called catecholamines . . . a good belly laugh massages chest organs, enhances blood flow, reduces inflammation, and stimulates alertness. Heart and respiratory rate, blood pressure and muscular tension all increase during laughter and them go lower for 45 minutes after. Laurel and Hardy along with The Three Stooges have shortened many a hospital stay.