People are also trying to figure out whether general anesthesia results in these same Tau tangles (with results still mixed: it could be that it is mostly due t

People are also trying to figure out whether general anesthesia results in these same Tau tangles (with results still mixed: it could be that it is mostly due to hypothermia that sometimes happens during anesthesia, not the anesthetic itself) in an attempt to explain why surgery sometimes results in "post-operative dementia" in elderly people. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3741335/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3741335/