According to a new Japanese study appearing in the current issue of the American Journal of Clinical Nutrition, drinking green tea daily may help reduce risk of dementia,.
The amount of green tea consumed was inversely related with the risk of having cognitive impairment in the aging process was the observation of the study.
Dr. Shinichi Kuriyama of Tohoku University Graduate School of Medicine and colleagues spearheaded the study. They extensively surveyed 1,003 men and women ages 70 or older for their dietary practice in the previous month, their overall physical health and lifestyle. Subjects' cognitive functions such as language use, attention and memory using a standard test were also taken into account.
The findings were that drinking two or more cups of green tea a day showed 50 percent decrease in show cognitive impairment in subjects than those who drank three cups or less a week.
One should not interpret this study as that drinking green tea results in lower risk of dementia because the study did not establish a causal relationship between drinking green tea and cognitive capacity.
But it surely underlines the importance of green tea.