Someone posted this elsewhere, and I thought I'd share it here. It is very interesting, since I've had Alzheimer's in my family and I've been taking Life Extension Memory Protect for a couple of years now, which contains Lithium. Hopefully these important research studies are able to continue, they benefit many who want to know the causes and what may help.
https://hms.harvard.edu/news/could-lithium-explain-treat-alzheimers-disease
https://hms.harvard.edu/news/could-lithium-explain-treat-alzheimers-disease