Their inability to scowl seemed to impair their ability to see why pushy telemarketers or a lack of birthday wishes might make one's face fall.

他们无法动怒似乎削弱了他们的能力，让他们明白为什么咄咄逼人的电话推销员或没得到生日祝愿可能会让一个人沉下脸来。

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Then it can really start to impair your ability to communicate.

然后，它开始削弱你的社交能力。

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Inadequate sleep is known to impair the ability to think, handle stress, maintain a healthy immune system, and keep emotions in check.

睡眠不足会削弱人们的思维能力和抗压能力以及对情绪的控制力，此外还会影响免疫系统的正常运转。

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That did little to impair American military capabilities in the region, but it had a big impact on Philippine security.

ECONOMIST: China and the Philippines

Earlier research showed that the neurons shrink in the hippocampus, and that seems to impair memory in response to stress, he said.

FORBES: Stress Can Shrink Your Brain

This states that it is an offence to commit an unauthorised act with the intent to impair the operation of a computer.

BBC: Arrest in computer hacking probe