relevant readings from other sources:

What We Know So Far about How COVID Affects the Nervous System

https://www.scientificamerican.com/article/what-we-know-so-f...

How COVID-19 can damage the brain

https://www.nature.com/articles/d41586-020-02599-5

U.K. study: Severe COVID-19 cases may age brain by 10 years

https://www.sfgate.com/news/editorspicks/article/U-K-study-S...