A. Eat your meals at regular intervals, and do not use animal fat or blood.
"Eat in due season." Ecclesiates 10:17. "It shall be a perpetual statute ... that ye eat neither fat nor blood." Leviticus 3:17.
Note: Recent scientific studies have confirmed the fact that most heart attacks result from a high cholesterol level in the blood, and that the use of "fats" is largely responsible for this high level. It looks like the Lord knows what He is talking about after all, doesn't it?
B. Don't overeat.
"Put a knife to thy throat, if thou be a man given to appetite." Proverbs 23:2. In Luke 21:34, Christ specifically warns against "surfeiting" (overeating) in the last days. Overeating is responsible for many degenerative diseases.
C. Don't harbor envy or hold grudges.
These evils disrupt body processes. The Bible says that envy brings "rottenness of the bones." Proverbs 14:30. Christ even commands us to clear up grudges that others may hold against us (Matthew 5:23, 24).
D. Maintain a cheerful, happy disposition.
"A merry heart doeth good like a medicine." Proverbs 17:22. "As he thinketh in his heart, so is he." Proverbs 23:7. Many diseases from which people suffer are a result of mental depression. A cheerful, happy disposition imparts health and prolongs life.
E. Put full trust in the Lord.
"The fear of the Lord tendeth to life: and he that hath it shall abide satisfied." Proverbs 19:23. Trust in the Lord strengthens health and life. "My son, attend to my words. ... For they are life unto those that find them, and health to all their flesh." Proverbs 4:20-22. So health comes from obedience to God's commands and from putting full trust in Him.
F. Balance work and exercise with sleep and rest.
"Six days shalt thou labour, and do all thy work: But the seventh day is the sabbath of the Lord thy God: in it thou shalt not do any work." Exodus 20:9, 10. "The sleep of a labouring man is sweet." Ecclesiates 5:12. "In the sweat of thy face shalt thou eat bread." Genesis 3:19. "It is vain for you to rise up early, to sit up late." Psalms 127:2. "For what hath man of all his labour, and of the vexation of his heart, wherein he hath laboured under the sun? ... his heart taketh not rest in the night. This is also vanity." Ecclesiastes 2:22, 23.
G. Keep your body clean.
"Be ye clean." Isaiah 52:11.
H. Be temperate in all things.
"Every man that striveth for the mastery is temperate in all things." 1 Corinthians 9:25. "Let your moderation be known unto all men." Philippians 4:5. A Christian will completely avoid all things that are harmful and will be moderate in the use of things that are good. Habits that injure health break the command "Thou shalt not kill." They kill by degrees. They are suicide on the installment plan.
I. Avoid all harmful stimulants.
Here is a surprise for some. Medical science has confirmed the fact that tea, coffee, and soft drinks that contain the addictive drug caffeine and other harmful ingredients are all positively damaging to the human body. None of these contain food value except through the sugar or cream added, and most of us already use too much sugar. Stimulants give a dangerous, artificial boost to the body and are like trying to carry a ton in a wheelbarrow. The popularity of these drinks is due not to flavor or advertising, but to the dose of caffeine they contain. Many Americans are sickly because of their addiction to coffee, tea, and caffeinated soft drinks. But the real tragedy is that men and women seeking peace and strength are using tea and coffee as cheap substitutes for prayer and Bible study. This delights the devil and wrecks human lives.
J. Make mealtime a happy time.
"Every man should eat and drink, and enjoy the good of all his labour, it is the gift of God." Ecclesiastes 3:13. Unhappy scenes at mealtime hinder digestion. Avoid them.
K. Help those who are in need.
"Loose the bands of wickedness, ... undo the heavy burdens, ... deal thy bread to the hungry, and ... bring the poor that are cast out to thy house ... when thou seest the naked, ... cover him ... and thine health shall spring forth speedily." Isaiah 58:6-8. This is too plain to misunderstand: when we help the poor and needy, we improve our own health.