Optimism's benefits for physical health also extend beyond heart health, such as improved immune system function and increased life span.

乐观对身体健康的益处不仅限于心脏健康，还包括改善免疫系统功能和延长寿命。

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They may have a weak or damaged heart, high blood pressure or other problems of the blood system.

VOA: special.2010.07.27

The circulatory system which we'll talk about in a couple of weeks, the heart, the blood vessels, and the blood work together to form a totally internal function.

例如过几周我们要讲的循环系统,心脏,血管,血液,三者协同工作,形成一个完全在体内发挥作用的体系

耶鲁公开课 - 生物医学工程探索课程节选

As it does that it changes the volume of the heart and gives the - creates the pressure that moves blood around your body, so it has that muscular system.

这使心脏的体积发生变化,产生了足以使血液流遍全身的压力,这就是心脏中有肌肉系统的原因

耶鲁公开课 - 生物医学工程探索课程节选

The foods promise to boost immunity, protect your heart and digestive system or help you sleep.

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It can carry Lyme disease, a bacterial infection which can attack the skin, heart and nervous system.

BBC: NEWS | UK | Magazine | Itching to get at you

At the heart of its system, running on CSC Hogan mainframe technology, is a central customer file, he said.

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