Coffee is known to decrease suicide attempts, reduced risk of Parkinson's disease and delays dementia. It can also positively affect cognitive performance, to reduce liver problems, and to provide antioxidants helpful in fighting cancer.
Now researchers believes that drinking coffee reduces depression in women.
According to the New York Times,
During the decade that the women were followed, 2,607 cases of clinical depression were diagnosed. Over all, women who regularly drank coffee had a lower risk of depression — about 20 percent — than the women who abstained, and the risk was dose-dependent. In other words, the likelihood of depression fell with each additional cup of coffee, in this case up to as many as six cups a day.
When soda, herbal teas and other sources of caffeine were taken into account, the relationship did not hold up. “The other sources were so minimal,” said Dr. Ascherio. “Nobody would get the equivalent of four cups of coffee by drinking tea or caffeinated drinks.”
The researchers aren’t sure why caffeine might keep depression at bay. “We know that caffeine enters the brain and activates the release of different neurotransmitters that are related to mood, like dopamine and serotonin,” Dr. Ascherio said. “That may explain the shorter-term effects on mood. But the long-term mechanisms of caffeine intake on mood we don’t really know.”