"Laughter is good medicine." Maybe you've heard that saying, and maybe you've had opportunity to test it and see if it's true. There have been studies done about brain chemistry and endorphins that are released in your body when you laugh that make you feel better and strengthen your immune system, but beyond the medical science, have you seen that laughter is good for you?I have a friend who is a professional comedian, and he loves to remind people that not only does laughter feel good; but even the Bible teaches that it's good for you: Proverbs 17:22 says, "A …