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

你的肾上腺释放压力荷尔蒙质，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，它产生的质减少，质是一种令人讨厌的荷尔蒙，它导致压力。

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

在感觉到压力大约20分钟后，你的身体经历一个延迟的压力反应，释放出质激素。

Buttner said cortisol levels do not necessarily demonstrate bad stress.

巴特纳称，质水平并不一定表明压力是" 负面" 的。

They looked at the levels of a hormone called cortisol.

他们观察了一种叫做质的激素水平。

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

记住，当你有压力时， 大脑释放质。

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

肾上腺素还触发压力荷尔蒙质的释放。

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

但是当质与海马体结合，它损害记忆的恢复。

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

荷兰研究人员的一项研究发现，园艺可减少大脑中的激素质（压力荷尔蒙）。

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 可以改变质对你紧张的大脑的影响。

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质，这是一种典型的压力激素。

One study even found that cortisol gradually shrinks your brain.

一项研究甚至发现，质使你的大脑逐渐缩小。

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

还能减轻疼痛，降低质等与压力有关的激素的水平。

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

这可能与荷尔蒙的变化有关，比如质降低。

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

质等应激激素也改变大脑功能，甚至改变我们的学习能力。

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

早上8点到9点质浓度达到顶峰。

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

许多研究表明，笑暂时降低质和肾上腺素的水平。

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

但是高水平的质在一段长时间过后严重破坏你的大脑。

And I've read that when they scream it literally releases cortisol in your brain.

我读到过，当他们尖叫时，你的大脑释放质。