During sleep, the brain reactivates patterns of neural activity that it performed during the day, thus strengthening the memories by long-term potentiation.

睡眠时，大脑激活白天活动的神经活动形态，因此通过长期势差过程巩固记忆。

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The most popular pills work by strengthening the effects of a brain chemical that slows the nervous system and promotes relaxation.

大部分常用安眠药通过使大脑减缓神经系统反应和促进放松的化学物质效应起作用。

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With every character, setting, and plot twist that a reader absorbs, his or her brain is in overdrive building new and strengthening old neuron brain connections.

读书的人要记住每一个人物、场景和情节的逆转，他们的大脑在超速构建新的并且不断强化旧的神经元大脑连接。

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In an elective setting, a user with this type of implant could potentially choose to stay focused on command, while constantly strengthening circuits of the brain associated with concentration.

WSJ: Bionic Brains and Beyond

Researchers are discovering that daily exposure to computers, smart phones, video games, Internet search engines, etc. stimulates brain cell alteration and neurotransmitter release, gradually strengthening new neural pathways while weakening old ones.

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