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Fasting, in which he has shown the benefits of dis- pensing with the breakfast. I can also say from my experience that there is absolutely no need to eat more than twice, for a man who has passed the period of youth, and whose body has attained its fullest growth.

��Chapter VII EXERCISE

Exercise is as much of a vital necessity for man as air, water and food, in the sense that no man who does not take exercise regularly, can be per- fectly healthy. By " exercise " we do not mean merely walking, or games like hockey, football, and cricket ; we include under the term all physical and mental activity. Exercise, even as food, is as essential to the mind as to the body. The mind is much weakened by want of exercise as the body, and a feeble mind is, indeed, a form of disease. An athlete, for instance, who is an expert in wrestling, cannot be regarded as a really healthy man, unless his mind is equally efficient. As already explained, " a sound mind in a sound body " alone constitutes true healthy

Which, then, are those exercises which keep the body and the mind equally efficient ? Indeed, Nature has so arranged it that we can be engaged

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