Inactivity is a fruitful cause of disease. Exercise quickens and equalizes the circulation of the blood, but in idleness the blood does not circulate freely, and the changes in it, so necessary to life and health, do not take place. The skin, too, becomes inactive. Impurities are not expelled as they would be if the circulation had been quickened by vigorous exercise, the skin kept in a healthy condition, and the lungs fed with plenty of pure, fresh air. This state of the system throws a double burden on the excretory organs, and disease is the result. (MH 238.1) MC VC

Invalids should not be encourage in inactivity. When there has been serious overtaxation in any direction, entire rest for a time will sometimes ward off serious illness; but in the case of confirmed invalids, it is seldom necessary to suspend all activity. (MH 238.2) MC VC

Those who have broken down from mental labor should have rest from wearing thought; but they should not be led to believe that it is dangerous to use their mental powers at all. Many are inclined to regard their condition as worse than it really is. This state of mind is unfavorable to recovery, and should not be encouraged. (MH 238.3) MC VC

Ministers, teachers, students, and other brain workers often suffer from illness as the result of severe mental taxation, unrelieved by physical exercise. What these persons need is a more active life. Strictly temperate habits, combined with proper exercise, would ensure both mental and physical vigor, and would give power of endurance to all brain workers. (MH 238.4) MC VC

Those who have overtaxed their physical powers should not be encouraged to forgo manual labor entirely. But labor, to be of the greatest advantage, should be systematic and agreeable. Outdoor exercise is the best; it should be so planned as to strengthen by use the organs that have become weakened; and the heart should be in it; the labor of the hands should never degenerate into mere drudgery. (MH 238.5) MC VC