PHYSIOLOGY OF FATIGUE.
Fatigue, following long-continued exercise, is really a mild form of illnqss, which arises from over-exerting some one part of the body. Every strain, mental or physical, requires a certain amount of time for recovery; and if a sufficient period is not allowed between repeated efforts, there results a certain clogging or congestion of the tissues about the points of tension. In writing, for instance, the lingers move up and down hardly more than a quarter of an inch as they travel across the page. Yet this is hard work for their little muscles, and burns up tissue in the fingers very fast. If rest intervals are too short or infrequent, there is not time for the removal of the waste products of this destruction through the normal channels of the body, and congestion results. This waste material is in effect somewhat poisonous, as it tends to decompose; that is, break up into several simple chemical elements and gases. The feeling of fatigue or pain that follows long-continued use of any of the muscles is due to the influence of such poisonous material, as well as to the stretching of the tissues caused by the pressure of the blood which settles there.
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Cromwell Argus, Volume LXII, Issue 3239, 21 November 1932, Page 2
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204PHYSIOLOGY OF FATIGUE. Cromwell Argus, Volume LXII, Issue 3239, 21 November 1932, Page 2
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