Eli5: How can you get more ill if you exercise vigorously with an underlying cold or fever?

Question

Eli5: How can you get more ill if you exercise vigorously with an underlying cold or fever?

In: 16

Answer 1

The less your body has to do at once the better it is at it

It can’t focus the entire nervous system on fighting infection if it also has to recover from physical exertion, and while it’s distracted doing that, the infection can get worse