Drinking coffee or green tea every day can help reduce the risk of suffering a stroke, according to a 13-year study that included more than 82,000 healthy Japanese men and women aged 45–74 years, without cardiovascular disease or cancer.
There is no limit to how much one can drink green tea and the more a person drank, the more it reduced the risk of stroke, while caffeine lovers who had at least one cup of coffee every day had about a 20 percent lower risk of stroke compared to those who rarely drank it.
The study’s lead researcher Dr. Yoshihiro Kokubo, of the Department of Preventive Cardiology, National Cerebra and Cardiovascular Center in Osaka, Japan, credits green tea’s catechins, which help regulate blood pressure and improve blood flow. Coffee’s chlorogenic acid and quinides may reduce body weight and blood glucose tolerance, the international press reports.
The study’s results were published recently in the American Heart Association journal “Stroke.”
According to previous studies, caffeine can stimulate the central nervous system by raising the effect of the brain chemical dopamine, which influences the levels of creativity and impulsivity.
A study published in 2012 also found that women who drink two or more cups of coffee a day are less likely to get depressed. Scientists say it may be linked to caffeine’s effect on the brain’s chemistry. The findings, published in “Archives of Internal Medicine,” come from a study of more than 50,000 American women.