Toning down a jumpy sympathetic nervous system will encourage a balanced sleep/wake cycle in perimenopausal women.

缓和跳跃的交感神经系统将促进更年期妇女睡眠/唤醒周期的平衡。

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Being consistent reinforces your body's sleep-wake cycle and helps promote better sleep at night.

坚持这样能加强你身体休息周期并且有助于晚上良好的睡眠。

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By sleeping late on weekends, Macejka was disrupting her the sleep-wake cycle for the whole week.

由于周末总是睡到很晚，马切伊卡打乱了周中的作息模式。

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You start off and you go down, down, down, and then you come up, then you get your first REM cycle, again, again, again, again, again, and then you wake up.

从第一阶段开始，到下面的阶段，然后又往上，这时就出现REM睡眠，然后再一次次地循环，直到你睡醒。

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Impairment in the body's internal clock, ultimately disrupting a person's sleep-wake cycle, is just one of the potential symptoms of dementia.

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Melatonin products are usually synthetic versions of the hormone made naturally by the pineal gland, in the brain, which helps regulate the body's sleep-wake cycle.

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Sharing a bed may also reduce cytokines, involved in inflammation, and boost oxytocin, the so-called love hormone that is known to ease anxiety and is produced in the same part of the brain responsible for the sleep-wake cycle.

WSJ: Who Sleeps Better at Night?