Drinking water which contains the element lithium may reduce the risk of suicide, a Japanese study suggests. ... We already know that lithium can act as a powerful mood stabiliser for people with bipolar disorder, and treating people with lithium is also associated with lower suicide rates. However, lithium also has significant and an unpleasant side effects in higher doses, and can be toxic. Any suggestion that it should be added, even in tiny amounts, to drinking water should be treated with caution and researched very thoroughly.
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