If invalids would recover health, they should not discontinue physical exercise. . . . There will be increased vitality, which is so necessary to health. They are deprived in a great measure of air, which will invigorate them and give them energy and vitality. Fresh air is the free blessing of Heaven, calculated to electrify the whole system. Nature will restore their vigor and strength in their sleeping hours, if her laws are not violated.
Bathing helps the bowels, stomach, and liver, giving energy and new life to each.
Those who are content to devote their lives to physical labor, and leave others to do the thinking for them, while they simply carry out what other brains have planned, will have strength of muscle, but feeble intellects. This class fall more readily if attacked by disease, because the system is not vitalized by the electrical force of the brain to resist disease. Bring to your aid the power of the will, which will resist cold, and will give energy to the nervous system. Misuse of the body shortens that period of time which God designs shall be used in his service. By allowing ourselves to form wrong habits, by keeping late hours, by gratifying appetite at the expense of health, we lay the foundation for feebleness.