The BBC Kickoffs Their ‘Put Lithium in the Drinking Water’ Campaign

‘People with higher levels of lithium in their drinking water appear to have a lower risk of developing dementia, say researchers in Denmark.
Lithium is naturally found in tap water, although the amount varies.
The findings, based on a study of 800,000 people, are not clear-cut. The highest levels cut risk, but moderate levels were worse than low ones.
Experts said it was an intriguing and encouraging study that hinted at a way of preventing the disease.
The study, at the University of Copenhagen, looked at the medical records of 73,731 Danish people with dementia and 733,653 without the disease.’
Read more: The BBC Kickoffs Their ‘Put Lithium in the Drinking Water’ Campaign