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Research reveals how tea may lower blood pressure

December 30, 2021

From the Medical News Today website

Humans first drank caffeinated tea more than 4,000 years ago in China. Since then, it has become one of the most popular drinks worldwide, second only to water. 

Both green and black teas are brewed from the leaves of the same shrub, Camellia sinensisTrusted Source, but green tea, which is made from unfermented leaves, contains more antioxidants.

Oxidation during the fermentation process of black tea reduces its antioxidant levels.

Several studies have found that green tea inhibits the formation of cancers, lowers high blood pressure, and reduces the risk of heart disease.

However, the molecular mechanism responsible for the effect on blood pressure has been unclear until now.

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