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Excercise and Immunity

Summary:
Years ago I remember reading how vigorous excercise suppresses your immune system, which seemed contrary to all the other benefits that excercise brings. I'm a keen cyclist so I thought I would check it out and it turns out new research shows it isn't true. Excercise is more likely to strengthen your immune system.We do not know exactly if or how exercise increases your immunity to certain illnesses. There are several theories. However, none of these theories have been proven. Some of these theories are: Physical activity may help flush bacteria out of the lungs and airways. This may reduce your chance of getting a cold, flu, or other illness. Exercise causes change in antibodies and white blood cells (WBC). WBCs are the body's immune system cells that fight disease. These antibodies or

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Excercise and Immunity

Years ago I remember reading how vigorous excercise suppresses your immune system, which seemed contrary to all the other benefits that excercise brings. I'm a keen cyclist so I thought I would check it out and it turns out new research shows it isn't true. Excercise is more likely to strengthen your immune system.

We do not know exactly if or how exercise increases your immunity to certain illnesses. There are several theories. However, none of these theories have been proven. Some of these theories are:

Physical activity may help flush bacteria out of the lungs and airways. This may reduce your chance of getting a cold, flu, or other illness.

Exercise causes change in antibodies and white blood cells (WBC). WBCs are the body's immune system cells that fight disease. These antibodies or WBCs circulate more rapidly, so they could detect illnesses earlier than they might have before. However, no one knows whether these changes help prevent infections.

The brief rise in body temperature during and right after exercise may prevent bacteria from growing. This temperature rise may help the body fight infection better. (This is similar to what happens when you have a fever.)

Exercise slows down the release of stress hormones. Some stress increases the chance of illness. Lower stress hormones may protect against illness.


Exercise and Immunity

Research paper

Debunking the Myth of Exercise-Induced Immune Suppression: Redefining the Impact of Exercise on Immunological Health Across the Lifespan

Excercise and Immunity

Mike Norman
Mike Norman is an economist and veteran trader whose career has spanned over 30 years on Wall Street. He is a former member and trader on the CME, NYMEX, COMEX and NYFE and he managed money for one of the largest hedge funds and ran a prop trading desk for Credit Suisse.

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