The following is a portion of a letter written to Edith Andrews, Niece of J. N. Andrews. DG 172.4
Attention to health is one of our most important duties. We owe this to ourselves, to society, and to God. Young men and young women are proverbially careless in regard to their health. Hundreds die in early life, not because of a dispensation of providence, but because of a dispensation of carelessness. Many girls go half clad in cold weather. Others choose to sit reading or writing when they should be taking physical exercise. God gave them organs for use. The living machinery is not to be allowed to rust from inaction. To keep all the powers of the body equally taxed will require self-restraint. The lives of many who have suffered premature death might have been prolonged to old age had they acted intelligently. DG 172.5
Disease and death have become common because of the unpardonable ignorance of those who ought to know better. DG 173.1
Exercise is indispensable to the health of every organ. If one set of muscles is used to the neglect of others, the living machinery is not being worked intelligently. DG 173.2
When physical exercise is taken, the circulation is quickened. The heart receives blood faster and sends it to the lungs faster. The lungs work more vigorously, furnishing a greater amount of blood, which is sent with stronger power through the entire being. Exercise gives new life and strength to every part of the body. DG 173.3
The nerves gain or lose strength in accordance with the way in which they are treated. If used too long and too severely, they are overtaxed and weakened. If used properly, they gain strength. DG 173.4
In order to have health, equilibrium of action must be maintained. The mind must harmonize with this, or the benefits are not realized. If physical exercise is regarded as drudgery, the mind takes no interest in the exercise of the different parts of the body. The mind must be interested in the exercise of the muscles. DG 173.5
In the education of the youth, physical exercise must be combined with mental taxation. DG 173.6
Young girls who have health never know how to appreciate its value. If their employment is sedentary, they have a distaste for other branches of labor. They complain of great weariness if they take exercise. This should be to them a convincing fact that they need to train their muscles.—Letter 6, 1885. DG 173.7
Laws of Health to Be Strictly Obeyed—A great amount of suffering might be saved if all would labor to prevent disease by strictly obeying the laws of health. Strict habits of cleanliness should be observed. Many, while well, will not take the trouble to keep in a healthy condition. They neglect personal cleanliness, and are not careful to keep their clothing pure. Impurities are constantly and imperceptibly passing from the body, through the pores; and if the surface of the skin is not kept in a healthy condition, the system is burdened with impure matter. DG 173.8
If the clothing worn is not often washed and frequently aired, it becomes filthy with impurities, which are thrown off from the body by sensible and insensible perspiration. And if the garments worn are not frequently cleansed from these impurities, the pores of the skin absorb again the waste matter thrown off. The impurities of the body, if not allowed to escape, are taken back into the blood and forced upon the internal organs. DG 174.1
Nature, to relieve herself of poisonous impurities, makes an effort to free the system. This effort produces fevers and what is termed disease. But even then, if those who are afflicted would assist nature in her efforts by the use of pure, soft water, much suffering would be prevented. But many, instead of doing this, and seeking to remove the poisonous matter from the system, take a more deadly poison into the system, to remove a poison already there.—The Review and Herald, December 12, 1899. DG 174.2
True Remedies for Health—Pure air, sunlight, abstemiousness, rest, exercise, proper diet, the use of water, trust in divine power—these are the true remedies. Every person should have a knowledge of nature's remedial agencies and how to apply them. It is essential both to understand the principles involved in the treatment of the sick and to have a practical training that will enable one rightly to use this knowledge.—The Ministry of Healing, 127 (1905). DG 174.3
The Influence of Fresh Air—Air, air, the precious boon of heaven which all may have, will bless you with its invigorating influence if you will not refuse it entrance. Welcome it, cultivate a love for it, and it will prove a precious soother of the nerves. Air must be in constant circulation to be kept pure. The influence of pure, fresh air is to cause the blood to circulate healthfully through the system. It refreshes the body and tends to render it strong and healthy, while at the same time its influence is decidedly felt upon the mind, imparting a degree of composure and serenity. It excites the appetite, and renders the digestion of food more perfect, and induces sound and sweet sleep.—Testimonies for the Church 1:702 (1868). DG 174.4
Sunlight a Necessity—There are but few who realize that, in order to enjoy health and cheerfulness, they must have an abundance of sunlight, pure air, and physical exercise.... DG 175.1
No room in the house should be considered furnished and adorned without the cheering, enlivening light and sunshine, which are Heaven's own free gift to man....—The Health Reformer, April 1, 1871. DG 175.2