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荷。

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

没错 他是 他就是个行走荷。

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

你肾上腺会释放力荷皮质醇，肾上腺素，以及去甲肾上腺素。

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

二十世纪，研究人员开始推敲荷概念。

They possess tryptophan, which helps create brain soothing hormones.

它们拥有色氨酸，帮助脑部释出舒缓荷。

Stress mixes up your hormones and should be avoided.

力会伴随荷变化而变化，应该尽量避免。

Just looking in your dog's eyes boosts happy hormones - oxytocin in human brains.

仅仅看着你家狗就可以促进脑中催产素，也就是快乐荷分泌。

" I didn't really like you. It was probably just hormones."

“我其实没那么喜欢你，之前是受到荷影响吧。”

" You're overreacting. You're probably just hormonal."

“你反应也太大了吧。可能是受到荷影响。”

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

它们得透过释放荷和气味标志才行。

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

肾上腺素还会触发力荷皮质醇释放。

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

第一组力荷高出很多。

Love hormone? Not so fast, new study suggests.

爱情荷？ 新研究表明，先别急于下定论。

Who knew that a few hormones could all do that.

又有几个荷就能做到这一点。

When you're experiencing excess stress, your brain releases hormones like cortisol, which impair your memory.

当力过大时，大脑会释放出皮质醇等荷，从而损害你记忆。

As you experience periods of low oxygen intake, your body releases stress hormones.

当你不时经历氧气摄入量过低时，你身体会释放力荷。

That's because those hair islands burst forth like hormonal volcanoes from a sea of adolescence.

那是因为那些毛发岛屿就是由在青春期海洋中荷火山爆发所形成。

With pregnancy, the swings should subside after the balance of hormones is back to normal.

怀孕人在荷平衡恢复正常后，这种波动就会消失。

The stress hormones don't affect the sequence of DNA, but they do change the shape.

力荷并不影响DNA序列，但它们确实改变了DNA形状。

Meanwhile, stress hormones affect immune cells in a variety of ways.

同时，力荷还会以多种方式影响免疫细胞。