Weird Hydrological Science

RealClearScience links to a study done at the Brighton and Sussex Medical School. It found that areas of the world with above normal levels of naturally occurring lithium in the public water supply have lower than normal levels of suicide.

Lithium, sometimes referred to as the ‘Magic Ion’, is widely and effectively used as a medication for the treatment and prevention of manic and depressive episodes, stabilising mood and reducing the risk of suicide in people with mood disorders. Its anti-aggressive properties can help reduce impulsivity, aggression, violent criminal behaviour and chronic substance abuse.

Seems logical.