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

褪黑激是种大脑分泌用来调节睡眠程度的荷尔蒙。

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

没错 他是 他就是个行走的荷尔蒙。

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

你的肾上会释放压力荷尔蒙皮质醇，肾上，以及去甲肾上。

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

肾上还会触发压力荷尔蒙皮质醇的释放。

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在青春期海洋中的荷尔蒙火山爆发所形成的。

The result, dopamine, the feel-good hormone is released.

结果，多巴胺，一种让人感觉良好的荷尔蒙被释放出来。

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尔蒙的概念。

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尔蒙。

Stress mixes up your hormones and should be avoided.

压力会伴随荷尔蒙的变化而变化，应该尽量避免。

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

仅仅看着你家狗的眼睛就可以促进脑中催产，也就是快乐荷尔蒙的分泌。

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

“我其实没那么喜欢你，之前是受到荷尔蒙影响吧。”

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

“你反应也太大了吧。可能是受到荷尔蒙的影响。”

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

它们得透过释放荷尔蒙和气味标志才行。

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

第一组的压力荷尔蒙高出很多。

Love hormone? Not so fast, new study suggests.

爱情荷尔蒙？ 新的研究表明，先别急于下定论。

Who knew that a few hormones could all do that.

又有几个荷尔蒙就能做到这一点。

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

当压力过大时，大脑会释放出皮质醇等荷尔蒙，从而损害你的记忆。

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，你的身体会释放压力荷尔蒙。

Hormonal differences like these determine how you experience your circadian rhythm.

这样的荷尔蒙差异决定着你的生物钟的效果。

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

压力荷尔蒙并不影响DNA的序列，但它们确实改变了DNA的形状。