Long Covid effects on muscles may explain reactions to exercise --study

A discovery in the muscles of long COVID patients may explain exercise troubles Long COVID patients can experience severe energy crashes after physical exertion. New research provides clear evidence that there's a biological basis for the symptoms. NPR

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By taking biopsies from long COVID patients before and after exercising, scientists in the Netherlands constructed a startling picture of widespread abnormalities in muscle tissue that may explain this severe reaction to physical activity.

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