Melatonin is a hormone secreted by the brain, and is critical in regulating your sleep.

激素是种大脑分泌用来调节睡眠程度荷尔蒙。

And when it's light, we produce less melatonin which encourages us to stay awake.

当光线充足时，我们产生较少激素，而激素帮助我们保持清醒。

Melatonin is the hormone of darkness.

激素是暗荷尔蒙。

But with nightfall comes the release of sleepy melatonin hormones from the pineal gland.

但是在晚上，就果体分泌激素。

We also have an abundance of melatonin, the hormone that induces sleep.

我们也有丰富激素，诱导睡眠荷尔蒙。

This can be very confusing, preventing the release of melatonin and the onset of sleep.

这令人非常困惑，阻碍激素释放、妨碍进入睡眠。

And when it's light, the production of melatonin drops.

而当光线充足时，身体则所分泌激素减少。

When it's dark, your body produces more melatonin, making you sleepy.

当光线昏暗时，你身体分泌较多激素，让你昏昏欲睡。

When it's dark, those cells trigger the production of melatonin, just like in our brains.

天时，这些细胞触发激素产生，就像在我们大脑中一样。

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

这是因为光抑制激素，激素在昼夜节律中起着重要作用。

In another study from 2013, researchers measured levels of melatonin, a hormone that regulates our circadian rhythm, throughout the day.

在2013年另一项研究中，研究人员测量了激素水平，激素是一种调节我们昼夜节律激素。

Researchers have discovered that " night milk" contains more melatonin, which has been proven to help people feel sleepy and reduce anxiety.

研究人员发现，“夜晚牛奶” 含有更多激素，激素已被证明可以帮助人们感到困倦和减少焦虑。

These slim metal dispensers from Inhale Health of Beverly Hills Biotech Company release vaporized vitamins, caffeine or melatonin.

这些贝弗利山名为吸康生物技术公司产金属自动装置可以释放汽化维生素、咖啡因或激素。

What's more, this study found that 92% of those who stopped taking melatonin saw their delayed sleep onset come back.

更重要是，这项研究发现92%停止服用激素人，他们延迟睡眠得到恢复。

The hypothalamus then halts the production of melatonin, a hormone that triggers sleep.

下丘脑随后停止激素产生，激素是一种引发睡眠激素。

That's because blue light stops the release of melatonin, the body's sleepy time hormone.

那是因为蓝光阻止激素释放， 激素是人体睡眠激素。

And for humans, when it gets dark, our bodies start producing melatonin, a hormone that helps us relax so we can sleep.

对人类来说，当天时，我们身体开始产生激素，一种帮助我们放激素，这样我们就可以睡觉了。

They found that 65% of the children still used melatonin daily and that in 88% of cases, it was effective in inducing and maintaining better sleep.

他们发现，65%儿童仍然每天使用激素，88%病例中，激素能有效地诱导和维持更好睡眠。

Participants reading the iPad took about 10 minutes longer to fall asleep, secreted less sleep-inducing melatonin, and shifted their internal circadian clock.

而平板组要花大约10多分钟才能入睡，睡眠中分泌激素也比较少，而且自身内在生物钟也受到影响。

Ya sure, why not ? Sounds like he only has transient insomnia since it’s a recent thing so taking melatonin do the trick.

当然，为什么不适用？听说他只是患有短暂性失眠，因为最近他才这样，所以服用激素管用。