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A physically fit person can fight off Infectious Diseases better than someone who is already ill, even if the the immune system is not involved in the pre-existing illness. For example, a person with Emphysema may have lousy lung expansion but have a relatively normal immune system, but the Emphysema patient would be much more susceptible to catching a cold (virus) or pneumonia (bacterial or viral) than a person with healthy lungs.

As another example, persons with Diabetes are often plagued by yeast and bacterial infections because the pathogens feast on high blood glucose levels. The person's immune system may work just fine until the body is overwhelmed by the infection. This is why it is so important that diabetics try to keep the blood glucose within normal limits and not have sky-high blood glucose levels.

Just because the immune system is functioning does not decease the risk of a person who is already ill from being susceptible to viral or bacterial infections.

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Q: Is it true that a physically fit person can fight off infectious diseases better than other persons can?
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Can a physically fit person fight off infectious diseases better than other persons can?

yes because your imune system is high if your healthy


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