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荷尔蒙皮质醇，肾上腺素，以及去甲肾上腺素。

Cortisol is toxic, and it causes cloudy thinking.

皮质醇是有毒的， 它会导致思维不清晰。

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

但是当皮质醇与海马体结合，它会损害忆的恢复。

Excess free cortisol is filtered in kidneys and dumped into the urine.

过量的游离皮质醇经肾脏过滤排入尿中。

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

住，当你有压力， 会释放皮质醇。

This was due to changes in their hippocampus all linked to increased levels of cortisol.

这是由于他们的海马体发生变化，所有这些都与皮质醇水平的增加有关。

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

肾上腺素还会触发压力荷尔蒙皮质醇的释放。

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，它产生的皮质醇就会减少，皮质醇是一种令人讨厌的荷尔蒙，它会导致压力。

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

当压力过，会释放出皮质醇等荷尔蒙，从而损害你的忆。

One study even found that cortisol gradually shrinks your brain.

一项研究甚至发现，皮质醇会使你的逐渐缩小。

As cortisol rises, electrical signals in your hippocampus deteriorate.

当皮质醇水平上升，海马区的电信号传输能力将会减弱。

Buttner said cortisol levels do not necessarily demonstrate bad stress.

巴特纳称，皮质醇水平并不一定表明压力是" 负面" 的。

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

有许多不同的方式 可以改变皮质醇对你紧张的的影响。

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，例如皮质醇。

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

许多研究表明，笑会暂降低皮质醇和肾上腺素的水平。

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，比如皮质醇降低。

They looked at the levels of a hormone called cortisol.

他们观察了一种叫做皮质醇的激素水平。

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醇，这是一种典型的压力激素。

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

皮质醇等应激激素也会改变功能，甚至改变我们的学习能力。

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

还能减轻疼痛，降低皮质醇等与压力有关的激素的水平。