Based on the laughter studies of Dr. Lee Berk in 1970. When we laugh: the levels of stress hormones, called cortisol, decreases. Cortisol acts by means of constricting our blood vessels. On the other hand, our body releases endorphins when we laugh. Endorphins are hormones that makes you happy.
If you are cheerful, you feel good; if you are sad, you hurt all over. Proverbs 17:22 (CEV)
As a Christian, we need to find joy in whatever circumstances we are experiencing right now. It is like finding good in the bad situation. Knowing that the problems and heartaches will just come to pass.
Bad thoughts can lead to a more serious problem, either physically or mentally. Smile more and fill your minds with happy thoughts and positive news - thus improving your well being.