That old saying, "Laughter is the best medicine," really is pretty accurate. Here are just some of the proven health benefits of laughing:
-lowers blood pressure
-increases blood flow to the heart and improves oxygenation of the blood
-uses, and may increase strength in, the diaphragm and abdominal, respiratory, facial, leg, and back muscles
-reduces certain stress hormones such as cortisol, epinephrine, and adrenaline
-increases health enhancing hormones such as endorphins
-increases the response of tumor- and disease- killing cells and reduces inflammation
-helps ward off respiratory infections, may even reduce the frequency of colds
-increases memory and learning, and may even increase test scores
-improves alertness and creativity
you grow old because you stop laughing."