Even without morning light, their circadian rhythms told them when dawn should be breaking.

即使没有晨，它们的生物钟也会告诉它们什么时候天亮。

But not everyone's circadian rhythm is the same.

但每个人的昼夜节律不一定是一样的。

Almost all living things have a circadian rhythm that changes with the light.

所有的生物都有随而变化的昼夜节律。

The circadian rhythm is like a clock or timer.

昼夜节律就像钟表或计时器。

The cells, called ipRGCs, are responsible for regulating circadian rhythms.

这些叫做ipRGCs的细胞负责调节昼夜节律。

Sleep is regulated by your circadian rhythm, or body clock, located in the brain.

睡眠由脑内的昼夜节律或生理时钟所管理。

The study showed how the body's circadian rhythm controlled the healing of wounds.

该研究展示了人体的昼夜节律如何控制伤口的愈合速度。

The light helps reset your circadian rhythm for healthful sleep.

有助于重置你的昼夜节律，以获得健康的睡眠。

This clock, known as the circadian rhythm, is on a roughly 24-hour cycle.

这个时钟被称为昼夜节律，大约以24小时为一个周期。

Hormonal differences like these determine how you experience your circadian rhythm.

这样的荷尔蒙差异决定着你的生物钟的效果。

When you stay up all night, you're fighting against your body's natural circadian rhythms.

当你熬夜的时候，你在和身体的自然昼夜节律做斗争。

This is basically your circadian rhythm's clock.

这基本就是你的昼夜节律时钟。

And the blue light from screens causes eye strain and disrupts circadian rhythms.

屏幕发出的蓝会造成眼睛疲劳，扰乱了昼夜节律。

Efforts to alter your circadian rhythm are likely to end in sleepy frustration.

试图改变你的昼夜节律可能会以困倦和沮丧告终。

Giles Duffield, a biologist at the University of Notre Dame, who studies circadian rhythms.

圣母大学研究昼夜节律的生物学家贾尔斯·达菲尔德说到。

That's because light suppresses melatonin, a hormone that plays an important role in circadian rhythm.

这是因为抑制褪黑激素，褪黑激素在昼夜节律中起着重要作用。

Their light at night can affect our internal clocks, or circadian rhythm.

它们在夜间发出的会影响我们的生物钟，或者说昼夜节律。

Sofia Axelrod studies circadian rhythms at Rockefeller University in New York.

索菲亚·阿克塞尔罗德在纽约洛克菲勒大学研究昼夜节律。

Just like humans, plants also have internal biological clocks, refer to as a circadian rhythm.

和人类一样，植物也有内部生物钟，也就是昼夜节律。

And once your circadian rhythm gets off, a lot of other things fall apart.

一旦生理时钟错乱，其他生理机制就会陷入混乱。