A study was done at Bighram and Women's hospital in Boston. About 700 men and women were involved in this study. The reason why tea helps in reducing the chance of a heart attack is because it contains flavonoids. Heart attacks occur when there is a blood clot in thecoronary artery. Flavonoid is a substance that prevents blood to clot.
Flavonoids are also an antioxidant that lessens the harmful effects of oxygen inthe body.
Flavonoid is found in black and green tea, as well as in vegetables,fruits, and red wine. The study however, did not compare the effects of drinking two or more cups of tea compared to justdrinking one cup. Many researchers doubt that one cup of tea a day will bringsuch a large effect. One experiment done with dogs indicated that six cups oftea was necessary to prevent a heart condition. Other factors also have hugeimpacts on heart diseases.