A study conducted in the Harvard School of Public Health, associated coffee consumption with a reduction of about 50% in the risk of suicide in men and women. The work was published in The World Journal of Biological Psychiatry.
Analysing data from three large studies involving more than 208,000 people, researchers found that those taking two to four cups of caffeinated coffee daily have a lower tendency to suicide than those who ingested decaffeinated coffee or does not drink.
The explanation may lie in the fact that caffeine is a stimulant as well as having a mild ant depressive effect by stimulating the production of neurotransmitters such as serotonin, dopamine and noradrenaline.
Despite the conclusion of the study, the authors recommend that depressed adults do not take more coffee, because in general people do such a consumer product at a level adjusted to their welfare. If you go to take over, may feel unpleasant effects of excess caffeine.
Source: Revista Cafeicultura