积极的情绪会通过提升我们的意识、注意力和记忆力等方式来影响我们的大脑，而不是像消极情绪那样限制我们的注意力。

Instead of narrowing our focus like negative emotions do, positive emotions affect our brains in ways that increase our awareness, attention and memory.

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锌和铁与大脑的注意力和记忆力有关。

Zinc and iron have been linked to the brain's ability to stay focused and remember information.

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当我们担心或者忧虑的时候会耗尽注意力和记忆力。

And when we worry, it actually USES up attention and memory resources.

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