A similar study by Harvard a few years ago found that taking benadryl increases dementia risk. https://www.health.harvard.edu/blog/common-anticholinergic-drugs-

A similar study by Harvard a few years ago found that taking benadryl increases dementia risk. https://www.health.harvard.edu/blog/common-anticholinergic-drugs-like-benadryl-linked-increased-dementia-risk-201501287667 https://www.health.harvard.edu/blog/common-anticholinergic-d...