Dark chocolate has been shown to have a beneficial effect on the heart in numerous studies, and now scientists from Linkoping University in Sweden know why.

　　经过数次科学实验，黑巧克力已被证明为“护心”食品。而如今，瑞典林雪平大学的科学家们发现了黑巧克力的“护心”奥秘。

资料图：科学家发现黑巧克力保护心脏奥秘

　　Because they found snacking on a slab of the cocoa-rich treat inhibits an enzyme in the body that is known to raise blood pressure.

　　原来，一小块恒星含量高的甜点便会抑制一种酶的活性，而这种酶正是让血压升高的“元凶”。
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