A merry heart - Unknown
That is a true physical fact of life yes; there are physical benefits to laughter and joyful thinking. Laughter exercises the lungs and stimulates the circulatory system; as a result increased oxygen enters the blood. Laughter acts to relieve pressure and in the long term it can be associated with mild decreases in blood pressure. It also relaxes the mind, relieves pain, elevates the mood, and increases immune cell activity.
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