RE: Why Do Some Survive COVID Easily And Some Die?
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Vitamin D levels seem to have the biggest affect on severity of COVID, which isn't surprising as it seems that vitamin D plays a leading role in regulating the immune system.
A huge portion of the population has vitamin D deficiency; So, when they get COVID19, their immune system produces things like the cytokine storm.
Wikipedia keeps reclassifying Vitamin D. They now call it a "secosteroid"
The association of corticosteroid and the cytokine storm is interesting. The adrenal gland produces corticosteroids which regulate the cytokine release. I suspect that people with damaged adrenal glands are more likely to have a severe reaction to COVID19.
I really wish that the studies about COVID19 concentrated more on immune system health and less on the products that pharmaceuticals can sell to patients.