People who drank more than four cups of coffee a day were 53 percent less likely to commit suicide than those who drank less than one cup a day, a new study found.
Those who drank two to three cups of coffee a day had a 45 percent lower risk of suicide, according to the analysis of data from more than 208,000 people who were followed from 1988 to 2008. During that time, there were 277 suicides, CBS News reported.
The study was published in the July issue of the World Journal of Biological Psychiatry.
"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," study author Michel Lucas, a research fellow in the department of nutrition at Harvard School of Public Health, said in a news release.