Exercise and Health

worker or indoor man or woman is to pump the blood through the tired brain and little-used muscles, wash out their fatigue poisons, burn up clean the wastes of the food necessary to supply working power, and get rid of all these through the lungs, the skin, and the kidneys. This process takes hours every day instead of minutes, and you can 110 more accomplish it in two or three ten-minute periods than you can keep up your working power 011 three tablespoonfuls of patent, pre-digested humbug in place of three square meals. Moreover, the only place to get rid of these waste poisons adequately from lungs and skin is in the open air." With regard to much that is popular under the name of "physical culture," Dr. Hutchinson says, "The most dangerous feature of fads in physical culture is that by their narrowness and in judiciousness they prevent you from getting enough of it!" This is not the only current superstition in the domain of physiology which Dr. Hutchinson attacks. He explains just how weak hearts are strengthened by steady exercise, and how weak lungs are built up in the same way, and how both heart