Your brain is the only organ that grows new nerve cells every single day.
That region is the hippocampus, and it runs on lithium.
Research shows that people who live in areas with even slightly higher lithium levels in their drinking water live longer, have lower rates of Alzheimer's, lower rates of cardiac disease, and lower rates of chronic disease across the board.
The hippocampus actively accumulates lithium precisely because it needs it to keep producing those new cells. It is, in the most literal sense, your mental immune system, and it is hungry for a mineral most people have never once thought about.
What else is quietly running (or quietly failing) because we've stripped our water, our soil, and our food of the things our bodies were designed to run on?