Along similar lines there was a good article in the Guardian: The brain microbiome: could understanding it help prevent dementia? https://www.theguardian.com/li

Along similar lines there was a good article in the Guardian: The brain microbiome: could understanding it help prevent dementia? https://www.theguardian.com/lifeandstyle/2024/dec/01/the-brain-microbiome-could-understanding-it-help-prevent-dementia https://www.theguardian.com/lifeandstyle/2024/dec/01/the-bra... Apparently viruses and also bacteria and fungi getting in the brain and causing problems are quite common.