Rejuvenate提供的睡眠SPA服务按时间收费，20分钟美金14元(约人民币95元)，30分钟美金19元(约人民币129元)，一个小时则是美金35元(约人民币238元)，时间到了，会有悦耳的音乐负责叫你起床，另外并有企业优惠方案，供老板们加强员工福利用。

Rejuvenate offers timed naps (you're wakened by a gentle chime) at $14 for 20 minutes, $19 for 30 minutes and $35 for an hour. Employers can purchase bulk packages.

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在尼桑汽车代理点，30分钟的快速充电仅仅花费500日元（6.02美元），普通充电花费100日元。

At Nissan dealerships, it costs just 500 yen ($6.02) for a 30-minute quick charge, and just 100 yen for a normal charge (typically overnight).

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很多年来，科学家们认为大脑的视交叉上核(scn)是生物钟中枢，具体机制是此处的神经元白天比夜间更兴奋。

For years, scientists thought that neurons in the brain's suprachiasmatic nuclei, or SCN, regulated our body clocks by firing a lot during the day and less at night.

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