A more sure word of prophecy

The teachers themselves should give proper attention to the laws of health, that they may preserve their own powers in the best possible condition, and by example as well as by precept may exert a right influence upon their pupils. The teacher whose physical powers are already enfeebled by disease or overwork, should pay special attention to the laws of life.He should take time for recreation. He should not take upon himself responsibilities outside of his school-work, which will so tax him, physically or mentally, that his nervous system will be unbalanced; for in this case he will be unfitted to deal with minds, and cannot do justice to himself or to his pupils. CTBH 83.3

Our institutions of learning should be provided with every facility for instruction regarding the mechanism of the human system. Students should be taught how to breathe, how to read and speak so that the strain will not come on the throat and lungs, but on the abdominal muscles. Teachers need to educate themselves in this direction. Our students should have a thorough training, that they may enter upon active life with an intelligent knowledge of the habitation which God has given them. Teach them that they must be learners as long as they live. And while you are teaching them, remember that they will teach others. Your lessons will be repeated for the benefit of many more than sit before you day by day. CTBH 83.4