This light-dark cycle is good for our bodies to predict changes in the environment.

这种光暗循环有助于我们的身体适应环境的变化。

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The energy is then used during the dark cycle to allow the plant to build sugars used for growth and energy storage.

然后植物在暗循环中利用这些材料合成用于生长和能量储备的糖。

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Half were housed in a standard light-dark cycle of 16 hours of light (at 150 lux) followed by eight hours of total darkness.

其中一半田鼠被封闭起来并做周期性的光照实验，每个周期先用150 勒克斯的光照持续照射16个小时，然后完全黑暗持续16个小时。

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Over the eight-week period of the experiment the mice in the first and third groups gained almost 50% more weight than those exposed to the natural light-dark cycle.

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"The good news is that people who stay up late in front of the television and computer may be able to undo some of the harmful effects just by going back to a regular light-dark cycle and minimizing their exposure to artificial light at night, " Bedrosian says.

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Heading into its third season this September, his dark and critically-acclaimed motor cycle drama is the highest rated original series FX has ever had on its schedule.

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