This is particularly true for noradrenaline .

尤其是去甲肾上腺素。

Lack of vitamin c , which affects noradrenaline levels , can make you crabby !

这是因为缺乏维生素c会影响去甲肾上腺素分泌的水平，这将使你变得暴躁。

One thing I know for sure is that happiness is connected to two key mood regulators that our brains produce - serotonin and noradrenaline .

有一点我是肯定的，快乐与由大脑产生的两把情感调节器的钥匙密切相关血清素和去甲肾上腺素。

These high-performing troops also seem to make better use of the surge of cortisol and noradrenaline during acute stress .

这些特训士兵们在紧急状态下似乎都能更好地利用皮质醇和去甲肾上腺素突发带来的好处。

That might explain their superior physical performance , but how do these troops maintain a clear head with such high levels of noradrenaline swamping their brain ?

这就能解释为什么他们拥有超强的体能，但是在如此高水平的去甲肾上腺素下，他们的大脑又是如何保持清醒的呢？