The glory of young men is their strength. Proverbs 20:29.

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….

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.

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.

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.

In order to have health, equilibrium of action must be maintained. The mind must harmonize with this…. If physical exercise is regarded as drudgery, if the mind takes no interest in the exercise of the different parts of the body [the benefits will not be realized]. The mind must be interested in exercise of the muscles.

In the education of the youth, physical exercise must be combined with mental taxation.—Letter 6, 1885.

Perfect obedience to God’s commands calls for conformity to the laws of the being….

The time spent in physical exercise is not lost. The student who is constantly poring over his books, while he takes but little exercise in the open air, does himself an injury. A proportionate exercise of the various organs and faculties of the body is essential to the best work of each. When the brain is constantly taxed while the other organs are left inactive, there is a loss of physical and mental strength. The physical powers are robbed of their healthy tone, the mind loses its freshness and vigor, and a morbid excitability is the result.

In order for men and women to have well-balanced minds, all the powers of the being should be called into use and developed….

[The Lord] bids us reason from cause to effect, to remember that we are His property, and to unite with Him in keeping the body pure and healthy, and the whole being sanctified to Him.—Counsels to Parents and Teachers, 295-300.

From Reflecting Christ

And every man that striveth for the mastery is temperate in all things. 1 Corinthians 9:25.

It rests with us individually to decide whether our lives shall be controlled by the mind or by the body. The youth must, each for himself, make the choice that shapes his life; and no pains should be spared that he may understand the forces with which he has to deal, and the influences which mold character and destiny.

Intemperance is a foe against which all need to be guarded. The rapid increase of this terrible evil should arouse every lover of his race to warfare against it.—Education, 202.

The observance of temperance and regularity in all things has a wonderful power. It will do more than circumstances or natural endowments in promoting that sweetness and serenity of disposition which count so much in smoothing life’s pathway. At the same time the power of self-control thus acquired will be found one of the most valuable of equipments for grappling successfully with the stern duties and realities that await every human being.

Wisdom’s “ways are ways of pleasantness, and all her paths are peace” (Proverbs 3:17). Let every youth in our land, with the possibilities before him of a destiny higher than that of crowned kings, ponder the lesson conveyed in the words of the wise man, “Blessed art thou, O land, when … thy princes eat in due season, for strength, and not for drunkenness!” (Ecclesiastes 10:17).—Education, 206.

“Let thine heart keep my commandments,” God says; “for length of days, and years of life, and peace, shall they add to thee.” “They are life unto those that find them, and health to all their flesh.” “Pleasant words,” the Scriptures declare to be not only “sweet to the soul,” but “health to the bones” (Proverbs 3:1, 2, margin; 4:22; 16:24).

The youth need to understand the deep truth underlying the Bible statement that with God “is the fountain of life” (Psalm 36:9). Not only is He the originator of all, but He is the life of everything that lives. It is His life that we receive in the sunshine, in the pure, sweet air, in the food which builds up our bodies and sustains our strength. It is by His life that we exist, hour by hour, moment by moment. Except as perverted by sin, all His gifts tend to life, to health and joy.

“He hath made every thing beautiful in its time” (Ecclesiastes 3:11, R.V.); and true beauty will be secured, not in marring God’s work, but in coming into harmony with the laws of Him who created all things, and who finds pleasure in their beauty and perfection.—Education, 197, 198.

From Reflecting Christ

Beloved, I wish above all things that thou mayest prosper and be in health, even as thy soul prospereth. 3 John 2.

The things of nature are God’s blessings, provided to give health to body, mind, and soul. They are given to the well to keep them well and to the sick to make them well. Connected with water treatment, they are more effective in restoring health than all the drug medication in the world.

In the country the sick find many things to call their attention away from themselves and their sufferings. Everywhere they can look upon and enjoy the beautiful things of nature—the flowers, the fields, the fruit trees laden with their rich treasure, the forest trees casting their grateful shade, and the hills and valleys with their varied verdure and many forms of life.

And not only are they entertained by these surroundings, but at the same time they learn most precious spiritual lessons. Surrounded by the wonderful works of God, their minds are lifted from the things that are seen to the things that are unseen. The beauty of nature leads them to think of the matchless charms of the earth made new, where there will be nothing to mar the loveliness, nothing to taint or destroy, nothing to cause disease or death.

Nature is God’s physician. The pure air, the glad sunshine, the beautiful flowers and trees, the orchards and vineyards, and outdoor exercise amid these surroundings, are health-giving—the elixir of life. Outdoor life is the only medicine that many invalids need. Its influence is powerful to heal sickness caused by fashionable life, a life that weakens and destroys the physical, mental, and spiritual powers.

How grateful to weary invalids accustomed to city life, the glare of many lights, and the noise of the streets are the quiet and freedom of the country! How eagerly do they turn to the scenes of nature! How glad would they be for the advantages of a sanitarium in the country, where they could sit in the open air, rejoice in the sunshine, and breathe the fragrance of tree and flower! There are life-giving properties in the balsam of the pine, in the fragrance of the cedar and the fir. And there are other trees that are health-promoting. Let no such trees be ruthlessly cut down. Cherish them where they are abundant, and plant more where there are but few….

Nothing so tends to restore health and happiness as living amid attractive country surroundings…. May God help us to do our utmost to utilize the life-giving power of sunshine and fresh air.—Testimonies for the Church 7:76-79.

From Reflecting Christ

For he that soweth to his flesh shall of the flesh reap corruption; but he that soweth to the Spirit shall of the Spirit reap life everlasting. Galatians 6:8.

The lower passions have their seat in the body and work through it. The words “flesh” or “fleshly” or “carnal lusts” embrace the lower, corrupt nature; the flesh of itself cannot act contrary to the will of God. We are commanded to crucify the flesh, with the affections and lusts. How shall we do it? Shall we inflict pain on the body? No; but put to death the temptation to sin. The corrupt thought is to be expelled. Every thought is to be brought into captivity to Jesus Christ. All animal propensities are to be subjected to the higher powers of the soul. The love of God must reign supreme; Christ must occupy an undivided throne. Our bodies are to be regarded as His purchased possession. The members of the body are to become the instruments of righteousness.—The Adventist Home, 127, 128.

A strict compliance with the requirements of God is beneficial to the health of body and mind. In order to reach the highest standard of moral and intellectual attainments, it is necessary to seek wisdom and strength from God, and to observe strict temperance in all the habits of life. In the experience of Daniel and his companions we have an instance of the triumph of principle over temptation to indulge the appetite. It shows us that through religious principle young men may triumph over the lusts of the flesh, and remain true to God’s requirements, even though it cost them a great sacrifice….

We should consider the words of the apostle in which he appeals to his brethren, by the mercies of God, to present their bodies “a living sacrifice, holy, acceptable unto God.” This is true sanctification. It is not merely a theory, an emotion, or a form of words, but a living, active principle, entering into the everyday life. It requires that our habits of eating, drinking, and dressing be such as to secure the preservation of physical, mental, and moral health, that we may present to the Lord our bodies—not an offering corrupted by wrong habits, but—“a living sacrifice, holy, acceptable unto God.” …

A close sympathy exists between the physical and the moral nature…. Wherever they may be, those who are truly sanctified will elevate the moral standard by preserving correct physical habits, and, like Daniel, presenting to others an example of temperance and self-denial. Every depraved appetite becomes a warring lust. Everything that conflicts with natural law creates a diseased condition of the soul….

With what care should Christians regulate their habits, that they may preserve the full vigor of every faculty to give to the service of Christ.—The Review and Herald, January 25, 1881.

From Reflecting Christ

In all matters of wisdom and understanding, that the king enquired of them, he found them ten times better than all the magicians and astrologers that were in all his realm. Daniel 1:20.

Why did Daniel and his companions refuse to eat at the king’s table? Why did they refuse his meats and wines? Because they had been taught that this class of food would not keep the mind or the physical structure in the very best condition of health to do God’s service. These youth urged most earnestly that the one who had charge of their food should not compel them to partake of the king’s luxuries, or drink of his wine. They begged him to try them ten days only, and then examine them, and decide by their physical appearance whether their abstemious diet would be to their disadvantage. When they came in for examination, the result was decidedly in their favor.

It was otherwise with the youth who had eaten of the luxuries of the king’s table, and drank of his wine. The clear sparkle of the eye was gone; the ruddy, healthful glow had disappeared from the countenance. The four Hebrew captives were thereafter permitted to have the diet they had chosen. What effect did it have upon mind and character? They had conscientiously refused the stimulus of flesh and of wine. They obeyed God’s will in self-denial, and He showed His approval. He desired His servants to honor Him by their adherence to steadfast principle in all their habits of life. Their countenances would be a certificate of physical soundness and moral purity.

“And as for these four children, God gave them knowledge and skill in all learning and wisdom: and Daniel had understanding in all visions and dreams.” These youth had the Lord as their educator. The golden links of the chain of heaven connected the finite with the infinite. They were partakers of the divine nature. They were very careful to keep themselves in touch with God. They prayed and studied and brought into their practical life strictly conscientious, humble minds…. The word of the Lord was their meat and their drink. “And in all matters of wisdom and understanding, that the king enquired of them, he found them ten times better than all the magicians and astrologers.” …

When the children of faith shall with earnest prayer dedicate themselves to God without reserve, the Lord will honor their faith, and will bless them with a clear mind….

The very flesh in which the soul tabernacles, and through which it works, is the Lord’s. We have no right to neglect any part of the living machinery. Every portion of the living organism is the Lord’s. The knowledge of our own physical organism should teach us that every member is to do God’s service, as an instrument of righteousness.—Special Testimonies, Series A 9:60-62.

From Reflecting Christ