Another study has given a thumb’s up to green tea for good health. This time it’s the brain that seems to benefit.

Researchers in Japan found that older people who regularly drink green tea have stronger cognitive abilities—including memory, orientation and the ability to follow commands and attention—than people who do not. Their results were published in a recent issue of The American Journal of Clinical Nutrition.

Among 1,000 study participants age 70 and older, those who drank two or more cups of green tea daily had 54 percent lower risk of cognitive impairment, while those drinking four to six cups per week were 38 percent less likely to show cognitive decline than people who drank less than three cups per week. No other kind of tea yielded the same results.