Laughter begins in the lungs and diaphragm, setting the liver, stomach, and other internal organs into a quick, jelly-like vibration, which gives a pleasant sensation and exercise, almost equal to that of horseback riding. During digestion, the movements of the stomach are similar to churning. Every time you take a full breath, or when you cachinnate well, the diaphragm descends and gives the stomach an extra squeeze and shakes it. Frequent laughing sets the stomach to dancing, hurrying up the digestive process. The heart beats faster, and sends the blood bounding through the body. "There is not," says Dr. Green, "one remotest corner or little inlet of the minute blood-vessels of the human body that does not feel some wavelet from the convulsions occasioned by a good hearty laugh." In medical terms, it stimulates the vasomotor centers, and the spasmodic contraction of the blood-vessels causes the blood to flow quickly. Laughter accelerates the respiration, and gives warmth and glow to the whole system. It brightens the eye, increases the perspiration, expands the chest, forces the poisoned air from the least-used lung cells, and tends to restore that exquisite poise or balance which we call health, which results from the harmonious action of all the functions of the body. This delicate poise, which may be destroyed by a sleepless night, a piece of bad news, by grief or anxiety, is often wholly restored by a good hearty laugh. There is, therefore, sound sense in the caption,--"Cheerfulness as a Life Power,"--relating as it does to the physical life, as well as the mental and moral; and what we may call THE LAUGH CURE is based upon principles recognized as sound by the medical profession--so literally true is the Hebrew proverb that "a merry heart doeth good like a medicine." "Mirth is God's medicine," said Dr. Oliver Wendell Holmes; "everybody ought to bathe in it. Grim care, moroseness, anxiety,--all the rust of life,--ought to be scoured off by the oil of mirth." Elsewhere he says: "If you are making choice of a physician be sure you get one with a cheerful and serene countenance." Is not a jolly physician of greater service than his pills? Dr. Marshall Hall frequently prescribed "cheerfulness" for his patients, saying that it is better than anything to be obtained at the apothecary's. In Western New York, Dr. Burdick was known as the "Laughing Doctor." He always presented the happiest kind of a face; and his good humor was contagious. He dealt sparingly in drugs, yet was very successful. The London "Lancet," the most eminent medical journal in the world, gives the following scientific testimony to the value of jovialty:--