The reason multitasking feels so good [is that] our brains give us extra shots of dopamine [a brain neurotransmitter that affects mood] for every new task we multitask.

原因是，一心多用让人感觉很棒，大脑会因为多了一项新的任务而分泌额外的多巴胺（一种影响人们情绪的神经传递素），人们因做每一项新任务而得到了化学物质的奖励。

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This area of the brain is of interest to researchers because it is where dopamine, a neurotransmitter, is produced.

大脑中的这部分区域引起了研究人员的兴趣，因为这里是神经传递素多巴胺产生的地方。

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Dopamine is the neurotransmitter in our brain that is intimately involved with feeling good.

多巴胺是大脑中与好的感觉密切相关的神经递质。

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Research at UCLA found that too much time spent on social media and too little time in social interaction is stimulating brain cell alteration and neurotransmitter release.

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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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One of the main ways schizophrenia drugs differ is in how they inhibit a brain receptor for dopamine, a key neurotransmitter that is overactive in some parts of a schizophrenic's brain.

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