Been meaning to try that melatonin.

本来还一直很想去试试吃褪黑素。

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

当光线昏暗时，你的身体会分泌较多褪黑激素，让你昏昏欲睡。

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

当光线充足时，我们产生较少的褪黑激素，而褪黑激素帮助我们保持清醒。

And levels of melatonin, the hormone that helps regulate sleep cycles, dropped.

帮助调节睡眠周期的褪黑素也减少了。

Your sleep is regulated by melatonin, a hormone which induces sleep.

睡眠是由褪黑素调节的，褪黑素是一种诱导睡眠的激素。

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

我们也有丰富的褪黑激素，诱导睡眠的荷尔蒙。

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

而当光线充足时，身体则所分泌的褪黑激素会减少。

That light beams in you.It tells your brain don't secrete melatonin yet.

这些光子流让大脑不要产生褪黑素。

Often because they produce high amounts of the sleep hormone melatonin later at night.

这通常是因为他们在深夜的时候会产出大量睡眠激素—褪黑素。

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

但是在晚上，就会从松果体分泌褪黑激素。