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

褪黑激素是种大脑分泌用来调节睡眠程度的。

Yes, he is. He's a walking hormone.

没错 他是 他就是个行走的。

Think of that as the stress hormone.

把它想象成压力。

So stressful hormones dip, and happy hormones rise.

所以压力下降的时候，快乐会上升。

The hormones released when we are hungry are the same as our fight or flight hormones.

我饥饿的时候所释放的跟我的战斗或逃跑是一样的。

And the stress hormones were way up in that first group.

第一组的压力高出很多。

I prefer to think of it as the affection hormone.

我更倾向认为它是情感。

Well, they're gonna have to use pheromones and scent markers.

它得透过释放和气味标志才行。

Who knew that a few hormones could all do that.

又有几个就能做到这一点。

They possess tryptophan, which helps create brain soothing hormones.

它拥有色氨酸，帮助脑部释出舒缓。

A couple of the big ones are a hormone called leptin.

几个大的是一种叫做瘦素的。

And they mostly have to do with sex. And your hormones.

它大多与性有关。还有你的。

In the 1900s, researchers started honing in on the concept of hormones.

二十世纪，研究人员开始推敲的概念。

The adrenaline also triggers the release of the stress hormone cortisol.

肾上腺素还会触发压力皮质醇的释放。

We met these hormones in this video.

我在这个视频认识一下这些。

I know how to kill that stress hormone, cortisol.

我知道如何杀死压力——皮质醇。

I'm on the hormones, and you've been extra frisky lately.

我最近飙升 你变得也异常跃。

Melatonin is the hormone of darkness.

褪黑激素是黑暗的。

Your adrenal gland releases the stress hormones cortisol, epinephrine, also known as adrenaline, and norepinephrine.

你的肾上腺会释放压力皮质醇，肾上腺素，以及去甲肾上腺素。

They call oxytocin the love hormone.

他称催产素为爱情。