The excessive use of table salt is another cause of early aging. It is a good preservative and pickles meat very well. People have long used salt as a preservative and perhaps they got the salt-eating habit in this way, first using it on the foods to be preserved, and then on nearly all foods. Salts to excess, especially table salt, help to mummify or pickle those who partake of them too liberally. The addition of sodium chloride to foods is unnecessary. We get all we need of this salt in our fruits, vegetables and cereals. Salt should be used in moderation. Alcohol, tobacco and coffee are harmful. However, it will be found that most of the old people have used one or more of these drugs for many years and this is often largely responsible for their reaching old age. Overeating causes more deaths than any other single factor. The use of tobacco, coffee or alcohol has a tendency to reduce the desire for food and thus these drugs at times prove to be conservers of individual lives, though they are undoubted racial evils. They never can or will take the place of self-control. The senses were given us to use for our protection, but most people abuse them for temporary gratification, and thus they go in the way of self-destruction. Other things being equal, a healthy child will live longer than a weakly one. But other things are not equal, so it often happens that a weakling has as much chance to survive as a healthy person. Strong people frequently squander their inheritance by the time they are forty or fifty years old. Healthy people are very imprudent. They are well so they think they will always remain well. What a surprise it is when after thirty they discover that they cannot do with impunity what they could do before with apparently no bad results! When warned about their eating habits they boast that they can "eat tacks". Smoking and drinking are harmless, they say! But the day of reckoning always comes and the account is often so great that under the conventional treatment of today they die. The weakling has been compelled to be careful. Habits of moderation grew upon him in youth, and his health has improved as he has advanced in years. He may never be strong, but great physical strength is not essential to health. Thus the strong often perish and the weak survive. If both classes lived with equal care the strong would outlive and outwork the weak every time.