If you haven’t watched the Medcram series, I highly recommend them, specially the last 10 or so as they spell out in detail how Covid-19 is actually attacking the endothelium in return showing as the many related symptoms, blood clots, skin discoloring etc. Dr. Seheult lays out the probable pathway, immune responses cause and effect resulting in oxidative stress and eventual thrombosis (all linked to case study and prior peer reviewed work, if not he notes it) He also points out possible weaknesses in the chain, where proper medical intervention can break the cycle.
There is much politically motivated outcry about how covid seems to be hitting the african american community harder than the general population. The lefties of course are not looking for any reasons that are not related to social justice issues that can be traced to republicans. It's what they do. Having said that, for those who are interested in identifying the real causes- assuming that the greater impact on blacks is true- it is worth noting that it is well established - let thinking and google be your friend if needed- that blacks have a significantly lower levels of serum vitamin D on average. In North American anyway. The hypothesis/theory is that it is a result of having higher levels of melanin in the skin combined with living in geographical locations that have low levels of sunlight. Not a good combination given that vitamin d is synthesized in the skin upon exposure to sunlight....and then a few more metabolic steps beyond that. Those who may be thinking about the relationship between vitamin d levels and covid and why blacks may be more adversely impacted might want to throw this factor on to the heap of other factors for consideration.
Oh definitely. It's a double whammy. They don't get out much, eh? So there is reduced exposure to the sunlight required to produce vitamin D, plus their skin "chemistry" has changed. The sunlight needs to act upon a form of cholesterol in the skin to create vitamin D (the liver has to do some things too to convert it to a functional form. Just as a piece of trivia, vitamin D is not actually a vitamin. It's a steroid hormone.
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