Although on the short-term, tea intake can raise blood pressure- peaks 45 to 90 minutes- epidemiological and intervention studies show that long-term intake of tea and other polyphenol-containing foods (e.g. grapes, onions etc) lower blood pressure. Although the effect is small, such effects could be important for cardiovascular health at population level.
The cardio effects of tea consumption exhibits a dose-dependent relationship. Those taking more than five cups of tea per day experienced fewer incidents of infarction, angina, stroke, lower prevalence of ventricular arrhythmia during hospitalization for myocardial infarction providing a potential explanation for the . . .
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