Over 100 million Americans drink coffee every day, which has led researchers at Harvard School of Public Health (HSPH) to look more closely at the effect of coffee on our happiness. The study, which was recently released, shows an association between drinking a few cups of coffee a day and a lowered — in fact, halved — risk of suicide in both men and women.
"Unlike previous investigations, we were able to assess association of consumption of caffeinated and non-caffeinated beverages, and we identify caffeine as the most likely candidate of any putative protective effect of coffee," lead researcher Michel Lucas, a research fellow in the Department of Nutrition at HSPH, said in a press statement.
The study reveals coffee's ability to protect the brain as a mild antidepressant. The caffeine in coffee not only stimulates the nervous system, but also enhances the production of certain neurotransmitters in the brain that include serotonin, dopamine, and noradrenaline.
The origin of coffee is the Ethiopian highlands, where the legend of Kaldi's coffee was born. Kaldi, a goat herder. noticed that when his goats ate unknown berries from a tree, they became hyper and restless. He tried it himself and made a drink with the berries, which he brought to the local monastery. The discovery spread like wild fire and found its way east to the Arabian Peninsula, where it was cultivated and traded. Now, over 70 countries grow trees to cultivate the beans found in coffee cherries, which makes it one of the most traded agricultural commodities and consumed beverages in the world.
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