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Her age is 53, but her heart age is 75 because she smokes and has uncontrolled high blood pressure. 她今年53岁，由于吸烟和持续走高的血压，导致她的心脏年龄为75岁。 Most American adults have a heart thats older than their a

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This is Scientific Americans -60 seconds science .I'm Steve Murskey.Got the minute? People with high blood pressure are often told to watch the salt, and it's long been far that hypertension related to excess salt is caused by the salt increasing in

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Most of the time I say a bomb tech has the best job in the world. But when nothing happens, thats really when they earn their pay. Looks like thats my problem. Next, its over to Grant. One of the key parts of mythbusting is data. Im totally psyched a

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These are the normal navigational instruments, I replied, and I'm familiar with their uses. 这些是航海家常用的仪器，我答，我知道它们的用法。我现在看见的这个表盘，上面有能转动的针，那不是流体压力计吗？

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