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

你的肾上腺会释放尔蒙皮质，肾上腺素，以及去甲肾上腺素。

As you physically start to relax, your body produces less cortisol, a pesky hormone that causes stress.

当你身体开始放松时，它产生的皮质就会减少，皮质是一种令人讨厌的尔蒙，它会导致。

And about 20 minutes after feeling stressed, your body undergoes a delayed stress response, releasing the hormone cortisol.

在感觉到大约20分钟后，你的身体会经历一个延迟的反应，释放出皮质激素。

I know how to kill that stress hormone, cortisol.

我知道如何杀死尔蒙——皮质。

Buttner said cortisol levels do not necessarily demonstrate bad stress.

巴特纳称，皮质水平并不一定表明是" 负面" 的。

They looked at the levels of a hormone called cortisol.

他们观察了一种叫做皮质的激素水平。

Remember, when you're under stress, the brain releases cortisol.

记住，当你有时， 大脑会释放皮质。

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

肾上腺素还会触发尔蒙皮质的释放。

But when cortisol binds to the hippocampus, it impairs retrieval of memory.

但是当皮质与海马体结合，它会损害记忆的恢复。

A study by researchers in the Netherlands found that gardening may reduce the stress hormone cortisol in the brain.

兰研究人员的一项研究发现，园艺可减少大脑中的激素皮质（尔蒙）。

All day your endocrine system has been releasing " awake" hormones like cortisol.

一整天你的内分泌系统都在分泌清醒的激素，例如皮质。

There are many ways to reverse what cortisol does to your stressed brain.

有许多不同的方式 可以改变皮质对你紧张的大脑的影响。

One study even found that cortisol gradually shrinks your brain.

一项研究甚至发现，皮质会使你的大脑逐渐缩小。

Then they thought the key factor could be cortisol, the quintessential stress hormone.

之后他们认为关键因素可能是皮质，这是一种典型的激素。

It can also ease pain and lower levels of stress-related hormones like cortisol.

还能减轻疼痛，降低皮质等与有关的激素的水平。

This probably has to do with those hormonal changes, like the lowering of cortisol.

这可能与尔蒙的变化有关，比如皮质降低。

Stress hormones like cortisol can also alter brain function, even our ability to learn.

皮质等应激激素也会改变大脑功能，甚至改变我们的学习能。

And it just so happens that between 8 and 9 AM cortisol levels peak.

早上8点到9点皮质浓度达到顶峰。

Many studies show that the act of laughing brings cortisol and adrenaline levels down temporarily.

许多研究表明，笑会暂时降低皮质和肾上腺素的水平。

But high levels of cortisol over long periods of time wreak havoc on your brain.

但是高水平的皮质在一段长时间过后会严重破坏你的大脑。