I just had Covid and I have no symptoms anymore except for being exhausted. Why is this? What actually keeps you tired during the recovery process?
In: Biology
Your body has an energy battery called glycogen. You normally have a healthy amount of it stored for emergencies. Folks who regularly exercise have a larger store.
When you’re sick, you burn a lot, I mean a lot of energy to heat your body up and cause fever. Fever deters several microbes (especially fungi) and boosts your immune system.
You also produce a lot of immune cells to fight the infection. This also takes a lot of energy.
Finally, when the infection is fought off, your immune cells don’t die off immediately. They continue to course through your body and tend to try to fight off whatever they see. Your body is also in a state of high alert and have inflammation to aid fast movement of immune cells and that also causes you to get tired.
All this takes some time to get back to normal.
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