One researcher found that watching a humorous video caused an increase in interferon-gamma both during and after the laughter experience. Sharpened mental functions. Jokes require attention. Word-plays can keep the mind busy. Humor can stimulate the release of adrenalin and electrical activity within the brain.
Laughter makes it easier to work hard comfortably.
Improved ability to organize information. Laughing together is a bonding experience. It is contagious, a socially transmitted disease of the best kind. It helps break down barriers among people because of its universality. Laughter may even reduce hostility and conflict.