Such a rhythm whose period is approximately—but not exactly—a day is called circadian.

这种以近似于——但不完全是——一天为周期的节律，叫做昼夜节律。

Not everyone has an identical circadian rhythm.

不是每个人都有相同的生理节律。

This is a benign variation within circadian rhythms known as a chronotype.

这是一种被称为睡眠类型的昼夜节律的良性变化。

For different individual horseshoe crabs, the circadian period ranged from 22.2 to 25.5 hours.

对于不同的鲎来说，其生理节奏的周期范围在22.2小时到25.5小时之间。

Even a fifteen-minute burst of light in otherwise sustained darkness can reset an animal's circadian rhythm.

即使是15分钟的猝发光（其它地方是持续的黑暗环境）也可以使动物重新设定生理节奏。

Women's Circadian Rhythm Beats Faster Than men's.

女性的昼夜节律比男性的快。

Light will only stimulate your brain's day/night balance (circadian cycle).

光只能刺激你大脑的日夜平衡（生理节奏循环）。

Light will only stimulate your brain’s day/night balance (circadian cycle).

光只能打破你的日夜平衡，导致生物钟紊乱。

Regular mealtimes, not just regular sleep times, help regulate our circadian rhythms.

不仅是有规律的睡眠时间，有规律的饮食时间也对调节我们的生理节奏有帮助。

The circadian clock can distinguish between different colors, or wavelengths, of light.

生物钟可以区分不同的颜色的，或者说，不同波长的光线。

Scientists have long known that our circadian rhythm is regulated by our exposure to light.

科学家们很早就知道光照时间长短控制着我们的生理节奏。

In other words, at least for humans, circadian rhythm is not entirely a matter of genetics.

换句话说，至少对于人类来说，昼夜节律不完全是遗传问题。

Each of us has our own normal circadian rhythm (natural daily rhythms of bodily functions).

每个人都有自己正常的生理节奏(身体日常运作的自然规律)。

In humans melatonin levels rise at night, in response to darkness and cues from the circadian clock.

人类的褪黑激素水平在夜晚上升，以响应黑暗和昼夜节律钟发出的信号。

Blue light - such as the light from the blue sky - is best for stimulating the circadian system.

蓝色的光——比如来自蓝天的光线——对生物钟的刺激最强烈。

New experiments on mice have found that a particular gene called per1 fires our circadian rhythm.

通过在实验鼠身上的实验，科学家发现一种名为per1的基因能控制身体节律。

And that light pollution could_3_our circadian rhythms, which control not only sleep, but metabolism.

而生理节奏不仅控制着人们的睡眠，还控制着人们的新陈代谢。

(For example, circadian rhythm). Moods, along with sleep patterns and energy levels, can be highly irregular.

生理节律情绪以及睡眠模式和精力水平会非常不规则。

More important, these regions included the suprachiasmatic area, which is home to the body's circadian clock.

更重要的是，这些区域包括掌管生物钟的视交叉上核。

This could be due to the effects of our natural sleep-wake cycle, or circadian rhythm, the researchers suggest.

研究者表明，这是由于我们的自然睡眠-觉醒周期或者昼夜节律的影响。

Collectively, these cycles are known as circadian rhythms and are generally tied to the 24-hour day-night cycle.

所有的这些周期被人们统称为昼夜节律，一般以24小时一昼夜为一个循环。

We humans like to think of ourselves as somehow outside the natural world, but we have a circadian clock as well.

我们人类喜欢把自己视为多少有点超乎于自然世界之外的高等动物，但我们也有一个生物钟。

Geneticists have by now identified a set of genes that regulate the SCN and thus the circadian rhythm among mammals.

遗传学家们目前确定了一系列基因，这些基因能够调节scn和哺乳动物的昼夜节律。

We're locked into it not just by day and night-there's the master timepiece in the brain called the circadian clock.

我们不仅按照昼夜的交替生活，而且还受大脑里的生物钟的支配。

The other technique experts advise is to stimulate your circadian rhythms with bright light and exercise during the day.

其他技术专家建议采用强光来刺激生物节奏和白天锻炼的方法。

Research into circadian rhythms has led to the discovery of a new and unanticipated molecular cog in the human body clock.

对生理节律的研究，发现了人体生物钟上一个不曾预料到的新分子齿轮。

What to do: If you suspect you have a circadian rhythm disorder, take steps to get your body onto a regular sleep schedule.

如何做：如果你推测你有生理节奏失调症状，采取有规律的睡眠时间的措施。