timothy from the worth-looking-into dept.
An anonymous reader writes "For the first time, researchers have found that a chemical in the brain called glutamate is linked to suicidal behavior. While previous research and drugs have targeted serotonin to fight severe depression, this study shows that more attention should be paid to this chemical."
One has to look out for engineers -- they begin with sewing machines
and end up with the atomic bomb.
-- Marcel Pagnol