EXERCISE MAY BE OVERDONE

Nature's Signals to Desist Should Be
Heeded by Those Who Would
Preserve Health.

"Pursued ostensibly to promote personal welfare, physical exercise is not infrequently curried to a point of overdoing, which results in injury rather than benfit." says the Journal of the American Medical Association.

Commenting on some observations made on aviators, it says the test of the value of an exercise lies In the physiological adjustments that it induces. "If the heart reduces its rate of beating and is less sensitive to exercise, the training Is commendable. Training should make the heart and other muscles better and endure fatiguing exercises better than the untrained heart does.

Consequently, if the heart reacts excessively as a result of work; if there is a rapid rise in pulse rate, which returns to its normal only after a long interval, the fundamental aim of exercise for health has not been accomplished. The symptoms of an overworked mechanism are at hand. However advantageous vigerous training may be in the great majority of cases, failure to adjust to the increased demand of work is always a signal to desist and an indication that other modes of perfecting the organism should be sought."