Some studies have demonstrated that Lithium acts as a protective agent against Alzheimer's. It runs in my family so I am glad I am taking Lithium. Haven't heard of studies on other psych meds. Bipolar must certainly mess with our brains though. Where did you get your information from? Was it a study or just online pages. I really hope not as i like my brain and would hate to lose any brain function. On the other hand there are people who have had BP all their life and have healthy brains despite it.