The laws of health / [David Nunes Nabarro].

Nabarro, David Nunes, 1874-

Date:: [1905?]

Catalogue details

Licence: In copyright

Credit: The laws of health / [David Nunes Nabarro]. Source: Wellcome Collection.

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of the most useful forms of exercise, because it brings into use nearly all the muscles of the body. In addition to this, a person who can swim well may be the means of saving the life of some unfortunate fellow-creature who has fallen into the water and is in danger of being drowned. In swimming, most of the leg muscles are used, especially those of the thigh and buttocks. The neck, arm, chest, and back muscles are also used. In fact, nearly every muscle of the body is exercised when we swim. 40. Good healthy muscle feels firm, particularly when contracted. All muscles have some fat between their fibres and on the surface. In fat, flabby people much more fat is present in the muscles. Often in such cases there may be more fat than flesh in muscles. Babies who are fed on too much sugary food and too little proteid and mineral food also get fat and flabby. Healthy muscles depend upon a healthy brain and nervous system. In certain diseases the muscles become unhealthy and changed into fatty material. This also happens when the nervous system is diseased. People with unhealthy muscles cannot use their muscles much. They cannot do much work and also soon get tired. 41. In order to keep our muscles in good condition, three things must be remembered. In the first place, to eat a sufficient quantity of proper food ; secondly, to take a sufficient amount of exercise so as to prevent the muscles getting flabby and soft from want of use; and thirdly, not to overtax some of the smaller muscles, such as those of the hand and eyes. We should also avoid sitting in a draught, otherwise we may get cold in the

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