The circadian rhythm is like a clock or timer.

昼就像钟表或计时器。

Luckily, the circadian rhythm isn't set in stone.

幸运的是，昼不是一成不变的。

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

即使没有晨光，它们的生物钟也会告诉它们什么时。

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

这些叫做ipRGCs的细胞负责调昼。

This is thanks to circadian rhythms.

这归因于昼。

Plants, animals, and many microbes have circadian rhythms.

植物、动物和多微生物也都有昼。

But not everyone's circadian rhythm is the same.

但每个人的昼不一定是一样的。

You know a lot about circadian rhythms.

你知道这么多和昼相关的知识啊。

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

睡眠由脑内的昼或生理时钟所管理。

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

该研究展示了人体的昼如何控制伤口的愈合速度。

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

圣母大学研究昼的生物学家贾尔斯·达菲尔德说到。

The scientists say that circadian clocks play an important part in healing.

科学家指出，昼在治疗方面有着重要的作用。

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。

Most people are loosely familiar with sleep-related terms like REM cycles, deep sleep, and circadian rhythms.

大多数人不太了解睡眠的相关术语，比如，快速眼动周期，深度睡眠及昼。

So a lot of that has to do with both the circadian rhythm and blood sugars.

所以这在很大程度上与昼和血糖有关。

One weight loss treatment currently in development aims to work by targeting your body's circadian rhythm.

目前正处于研发阶段的减肥疗法旨在针对人体的生理奏达到效果。

Now, your circadian system can't just decide its bedtime and knock you out.

你的生物钟无法确定休息时间，直接让你进入睡眠。

So how does the sunflower circadian rhythm play a role in its sun-tracking behaviour?

那么向日葵的昼是如何在它的太阳追踪行为中发挥作用的呢？

The circadian rhythm of a human being creates several physiological and chemical changes within the body.

人体的昼会在体内产生一些生理和化学变化。

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

几乎所有的生物都有随光而变化的昼。