What is SECOND WIND?

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What does SECOND WIND mean? SECOND WIND meaning - SECOND WIND definition - SECOND WIND explanation. What is the meaning of SECOND WIND? What is the definition of SECOND WIND? What does SECOND WIND stand for? What is SECOND WIND meaning? What is SECOND WIND definition?ion.

Second wind is a phenomenon in distance running, such as marathons or road running (as well as other sports), whereby an athlete who is too out of breath and tired to continue suddenly finds the strength to press on at top performance with less exertion. The feeling may be similar to that of a "runner's high", the most obvious difference being that the runner's high occurs after the race is over. Some scientists believe the second wind to be a result of the body finding the proper balance of oxygen to counteract the buildup of lactic acid in the muscles. Others claim second winds are due to endorphin production.

Heavy breathing during exercise is also to provide cooling for the body. After some time the veins and capillaries dilate and cooling takes place more through the skin, so less heavy breathing is needed. The increase in the temperature of the skin can be felt at the same time as the "second wind" takes place.

Documented experiences of the second wind go back at least 100 years, when it was taken to be a commonly held fact of exercise. The phenomenon has come to be used as a metaphor for continuing on with renewed energy past the point thought to be one's prime, whether in other sports, careers, or life in general.

A second wind phenomenon is also seen in some medical conditions, such as glycogen storage disease type V.