The air in a dormitory should smell sweet and clean, even though warm. Fresh air should be continually admitted in a way that will not throw a draft on any of the sleepers. It is much better to sleep in a cold room with fresh air than in a hot stuffy one. Fresh air not only prevents consumption, but it will cure mild cases of consumption without other medicines 1476. Keep the body well exercised without exhaustion.
Exercise is absolutely necessary to good health.
Lack of exercise of any set of muscles will cause them to grow flabby and weak. Outdoor sports are the best form of exercise, because they use all the body muscles and are in the open clear air. Exhaustion, on the other hand not only weakens the muscles of the body, but it also lessens the vital forces and powers to resist germs 1476. Keep the body rested by sufficient sleep. Give the body enough sleep.