Loudspeaker (Jan-Aug 1931)

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Health Talks tor Projectionists BY AN ANATOMIST Fatigue — Is a condition of lowered vitality, with an accumulation of waste products in the body, and formation of special toxins, due to faulty metabolism, lack of vital resistance, overwork, violent exercise, tension strain, etc. And frequently found in all workers who have to undergo arduous labor, physical or mental strain. Fatigue is a purely personal factor, and depends on individual idiosyncrasy and susceptibility. A work that may cause fatigue symptoms in one worker may not produce it in another, and the same individual is more subject to it at one time than another. Fatigue is also influenced by environmental factors, or the various conditions by which the work is attended ; but as a rule the more prolonged the work, the greater the strain, and the sooner and greater the fatigue. General fatigue manifests itself in a diminished vitality, in a lessened resistance, in a disability to perform the amount and character, a predisposition to succumb to any detrimental influence and disease. The over-working, or too prolonged use of one part of the body, or one set of muscles, or organ, is often followed by “Fatigue Neurosis,” which manifest themselves in loss of motor, sometimes sensory function of the particular organ, or set of muscles. The most common example of such Neuroses, is seen in the so-called Writers’ Cramp, Telephone and Wireless Operators, Projectionists, Copyists, and others. A similar affection is met among Typesetters, Telegraphers, Violinists. The effect of duration of work will partly depend upon the tension with which it is carried on. When work is performed under great stress, tension, artificial stimulus, etc., the point of fatigue arrives sooner, and its ill effects are more marked. Normally the eyes use 1/10% of Tw en t y 1 nv o the entire nerve supply of the body, and it has been found that 50%. of all nervous diseases, and many others, have their primary origin in “Eye Strain.” One of the important work of the eyes of the projectionist, is constantly gazing from the projector, while in operation, surrounded by its flood of bright light, then suddenly through a space of semi-darkness to the picture on the screen. This causes a continual contraction and dilation of the pupils or (Iris) which could be termed an exercise, and quite beneficial for a certain period of time, but after long hours the point of fatigue is reached, and the so-called “Eye Strain,” with lowered resistance begins. Which merely means, the tiring of the muscles of the eyes, caused by “Neurosis, a functional disturbance of the nerves, to the eyes.” The muscles and nerves that control the organ of hearing come in for their share of strain, beyond the point of fatigue, resulting in a general physical tiresome condition, that requires a prolonged rest and relaxation to rejuvenate. The time for rebuilding cell energy varies greatly in different individuals, according to his mode of living. But it can be safely said that proper food, outdoor life, as much as possible, and the art to attain proper relaxation, is among the most beneficial factors in renewing deteriorated tissues, caused from bodily fatigue. i i i BADLY PUT OUT Bro. Ball recently lost his bearings. After listening in with the head-set to a talking dog comedy his nose flattened against the port glass, his orbs glued to the screen, he remarked with disgusted conviction : “Those ani mals can’t talk ! Their voices are faked !” And he can’t be convinced otherwise.