Manual labor quickens the circulation of the blood. The more active the circulation the more free will be the blood from obstructions and impurities. The blood nourishes the body. The health of the body depends upon the healthful circulation of the blood. If work is performed without the heart being in it, it is simply drudgery, and the benefit which should result from the exercise is not gained.—The Health Reformer, May, 1873. MM 106.3