A systematic review of 49 imaging studies highlights how COVID-19 affects the human brain. Researchers found widespread structural and functional changes in areas responsible for memory, emotion, and attention, providing insight into enduring neurological symptoms like brain fog.
I seriously think this explains much of the MAGA crowd.
Naw, they were just as stupid/malicious/anti-American pre-covid.
Any effect it had on their brains has been obfuscated by their chimpanzee-esque baseline.