They looked at the levels of a hormone called cortisol.

他们观察了一种叫做皮质激素水平。

One study even found that cortisol gradually shrinks your brain.

一项研究甚至发现，皮质你大脑逐渐缩小。

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

但是当皮质与海马体结合，它损害记忆恢复。

Buttner said cortisol levels do not necessarily demonstrate bad stress.

巴特纳称，皮质水平并不一定表明压力是" 负面" 。

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

一整天你内分泌系统都在分泌清醒激素，例皮质。

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

还能减轻疼痛，降低皮质等与压力有关激素水平。

The trouble comes when cortisol remains in the body for extended periods.

皮质兜里在体内时间若有延长，反而有麻烦。

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

有许多不同方式 可以改变皮质对你大脑影响。

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皮质，这是一种典型压力激素。

The researchers measured the teens'level of the stress hormone hormone cortisol after the math quiz.

研究人员在数学测验后测量了这些青少年压力荷尔蒙皮质水平。

For this reason, drinking coffee after your cortisol surge at 9AM is probably best.

因此，早上9点皮质激增后喝咖啡可能是最合适。

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

但是高水平皮质在一段长时间过后严重破坏你大脑。

The higher the cortisol level, the more sensitive an individual is to a pressurized situation.

皮质水平越高, 个人对于压力增加情况越是敏感。

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

当压力过大时，大脑释放出皮质等荷尔蒙，从而损害你记忆。

Two steroid hormones—testosterone and cortisol—come out in force during the excesses of bull and bear markets.

强劲牛市和熊市出现时, 　两类固激素，就是睾酮和皮质剧增。

And it's this clock that controls the release of a hormone called cortisol.

正是这个时钟控制着一种叫做皮质激素释放。

If you are a pet owner, you tend to have a lower levels of cortisol overall.

果你是宠物主人, 你有较低水平皮质。

That is because there are human personality traits that also appear to affect dogs' cortisol levels.

这是因为人类性格特征似乎也影响狗皮质水平。

Cortisol levels increased during all separations, whether a preferred partner or any other pack mate was taken away.

所有分离都导致了皮质水平增加，不管是关系更好同伴或者是其他同伴被带走。

And being in the presence of a friendly dog has been shown to lower cortisol levels and increase Oxytocin.

研究表明，与友好狗狗在一起降低皮质含量，增加催产素释放。