Possible Contribution of Green Tea Drinking Habits to the Prevention of Stroke

Abstract

Among 5910 nondrinking and nonsmoking women (of≥40 years of age) in a prefectural city of Sendai, and two villages of Tajiri and Wakuya in Miyagi prefecture, Japan, medical history of stroke was less frequently observed among those who took more green tea in daily life. No relation with tea drinking was observed for hypertension history. The uneven distribution of stroke history was detectable even after the effects of age, location of residence, and high salt intake were ruled out. The incidence of stroke and cerebral hemorrhage during a 4-year follow-up of the study population was twice or more times higher in those who took less green tea (<5 cups a day) than in those who took more (≥ cups daily). © 1989, Tohoku University Medical Press. All rights reserved.