Lithium has neuro protective properties. This has been known for quite a while but is not in big pharma's interest to follow up. But Lithium Orotate, a low, safe dose is availble. It is natural lithium in a B13 carrier and used by naturopaths for many neuro/psychiatric problems to great effect. Much less is needed than the pharmaceutical variety, it is a lot safer and reaches its goal in the brain more effectively.