What I derived from the author:

• Lithium protects and renews brain cells.
• Increases brain grey matter.
• May help generate new brain cells.
• Enhances nerve cell DNA replication.
• Increases production of bcl-2 protein, a brain protector.
• Inhibition of N-methyl-D-aspartate overactivity, preventing brain cell injury.
• Reduces cell death in brain post ischemic stroke.
• Protects against brain cell death using some drugs, ei anti-convulsant medications.
• Lithium is required for at least two pathways of signaling between brain cells and networks of brain cells.
• Protects against glutamate induced nerve cell damage.
• Slows Alzheimer's through inhibition of beta-amyloid secretion and damage.
• Inhibits damage from overactivation of tau protein in brain.
• Inhibits damage from neurofibrillary tangles in brain.
• Helps chelate aluminum from brain.
• Slows senile dementia.
• Helps alcoholism and associated mood disorders.
• May help fibrolyalgia pain and stiffness symptoms.
• Adding Vitamin C to Lithium may help gout.
• May reduce severity and frequency of cluster headaches.
• May inhibit virus reproduction, especially with lysine, selenium, et al.
• Normalization of thyroid hormones in Graves' disease.
• Flaxseed oil and Vitamin E reduce risk of toxicity long-term.

Recommendation of 10 to 20 mg of lithium orotate or aspartate daily for anti-aging and the brain. Most studies were conducted with much higher doses however. The author has 30+ years of experience with lithium supplementation.

Anyone have first hand experience with Lithium supplements or rich foods? I imagine euthyroid people with too much lithium will have hypothyroidism potentially.