Show Daily Health Service Over-exertion Over Great Danger of Sport S and Exercise Editors Editor's Note This Note This is the fourth of a series of articles by Dr Fishbein Fish bein on That Tired Feeling How You Get That Way and What to Do About IL The Tho fifth and concluding art arti dc cle will appear tomorrow B By DR MORRIS FISHBEIN Editor Journal of the American Medical Med Mcd- ical Association and of Hygeia the Health Magazine Stop and rest when you are tired That is the best advice the average average aver aver- age office worker and business man can get The athlete and the hardened hardened hard hard- ened laborer may continue unusual exertion for long periods without ill effects but for the average white while collar ollar man such exertion is not only painful to him but dangerous to his health His system is not attuned to its maximum capabilities and consequently consequently conse conse- we see most business men menor menor menor or office oUke workers almost breathless after even a short shOTt sprint Unused to such effort his lungs ire are vainly trying to his tem cm with the oxygen needed to repair broken cells His circulation Is Unequal un un- equal to the task of or carrying all this oxygen and short breath follows The average a man breathes from 15 5 to 20 times a minute and his pulse runs uns from 60 to 80 When he plays ploys tennis ennis shovels a ton or so of coal runs rapidly or tries any other such exercise his breathing rate rapidly rises to from 30 to 54 times Umes a minte min min- ute te and his pulse may reach as high as ns per minute These tendencies are but natural and nd are not harmful But J if you have ave done so 60 much work that you do o not completely recover within a reasonable length of time say sayan an hour our you have overtaxed your mus mus- cles les and you are atc placing too severe a strain on your lungs lunes and blood dr cir clr system Muscles are arc apt to become very stiff and sore and cause great discomfort dis- dis comfort for tor several days 40 o 0 I If you ou intend to take strenuous exercise begin with a n small amount each day and gradually increase it until your our system has become accustomed ac nc ac- ac to such effort For example do not pIa play 54 holes of golf the first time you go out after a winter layoff Start out with nine or 18 and then gradually work yourself yourself your your- self into condition to play two or even three rounds Too much tennis or other really strenuous exercise may result not only In the wearing down dawn of the resistance resistance re re- re- re of the body but also In serious serious seri serio ous injury Many persons have suf with heart trouble for years because they went beyond their normal normal nor nor- mal endurance in some contest or sport Tomorrow The child at play 41 a |