Jul 27 2013, 2:01am CDT | by IANS
The finding was reached after researchers from the Harvard School of Public Health reviewed data from three previous US studies.
They found that the risk of suicide amongst adults, drinking several cups of caffeinated coffee on a daily basis, was about half compared to those who drank decaffeinated coffee, very little coffee or no coffee at all, Daily Mail reported.
Caffeine works by stimulating the central nervous system but may act as a mild antidepressant by increasing production of certain "feel good" neurotransmitters in the brain, including serotonin, dopamine, and noradrenaline.
The researchers reported this could explain why earlier epidemiological studies have found a lower risk of depression among coffee drinkers in the past.
The authors, in spite of the findings, have not recommended that depressed adults self-medicate by increasing their caffeine consumption as an increase could result in unpleasant side effects.
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