Drinking tea is associated with arrange of health benefits, including reductions in blood pressure. Researchers have discovered how compounds called 'catechins', found in green and black tea, relax the smooth muscles that line blood vessels, which may lead to lower blood pressure.
The discovery could lead to development of better medication for high blood pressure, also called hypertension. The finding could also inspire new treatment for debilitating condition called epileptic encephalopathy. Human first drink caffeinated tea more than 4000 years ago China. Since then, it has become one of the most popular drinks worldwide, second only to water.
Both green and black tea are brewed from the leaves of the same shrubs, 'Camellia sinensis', but green tea, which is from unfermented leaves contains more antioxidants. Oxidation during the fermentation process of black tea reduces its antioxidants level.
Several studies have found that green tea inhibits the formation of Cancer, lower high blood pressure, and reduce the risk of heart disease. However, the molecular mechanism responsible for the effects on blood pressure has been unclear until now.
Scientist at the University of California, Irvine (UCI) and the University of Copenhagen, in Denmark have found that antioxidants in tea open in channels and can relax the muscles that line blood vessels.
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