Once attraction is confirmed, your bloodstream is flooded with norepinephrine, activating your fight or flight system.

一旦吸引力被确认，你的血液和肾上腺素一起沸腾，激发你的“战斗或逃跑”系统。

Whether you're awake or asleep, norepinephrine helps you remember things.

无论清下还是睡着了，去甲肾上腺素都能帮助人们记住各事情。

First, it optimizes the levels of neurotransmitters like serotonin, norepinephrine, and dopamine.

首先，它能优化经递质水平，如血清素、去甲肾上腺素和多巴胺。

When you fall asleep though, your norepinephrine levels drop.

当你入睡时，去甲肾上腺素水平会下降。

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。

And releases epinephrine and norepinephrine into the blood making your heart pump faster.

并会向血液中释放肾上腺素和降肾上腺素使你的心跳加速。

You've probably heard of a couple of these neurotransmitters—serotonin and norepinephrine.

或许你可能听过经递质介质——5-羟色胺与降肾上腺素。

Well, exercise releases an important blend of mood altering hormones including dopamine, serotonin and norepinephrine.

通过锻炼，人体会释放一些重要的情绪调节激素，包括多巴胺、血清素和降肾上腺素。

They lose their sensitivity to serotonin and norepinephrine. Which leads to...? Impaired cognitive function.

会失去对5 羟色胺和正肾上腺素的敏感性 那就会引起认知功能受损。

Once it hits your bloodstream, it targets three major neurotransmitters — serotonin, dopamine, and norepinephrine.

一旦它进入你的血液，它就会瞄准三主要的经递质——血清素、多巴胺和去甲肾上腺素。

Aside from its positive effects on dopamine, exercise also elevates levels of norepinephrine and serotonin.

除了可以增加多巴胺外，锻炼还能提高体内的去甲肾上腺素以及 5-羟色胺水平。

Tyrosine is needed to synthesize dopamine and norepinephrine, and tryptophan is needed to synthesize the neurotransmitter serotonin.

酪氨酸是合成多巴胺、去甲肾上腺素所必须的；色氨酸是合成经递质血清素所必须的。

So, the preganglionic fiber releases ACh, and the postganglionic releases norepinephrine.

所以节前经纤维释放 ACh，节后经纤维释放去甲肾上腺素。

And disturbances in norepinephrine transmission is thought to also be a key component in depression.

去甲肾上腺素传递的紊乱也被认为是抑郁症的关键诱因。

This mood-depressing drug also reduced brain levels of norepinephrine, dopamine, and serotonin.

这抑制情绪的药物还能降低大脑中去甲肾上腺素、多巴胺和 5-羟色胺的水平。

This one's called norepinephrine. And it is always norepinephrine that's released from postganglionic fibers in the sympathetic nervous system.

这个叫做去甲肾上腺素。交感经系统节后纤维释放的永远是去甲肾上腺素。

Adderall also causes the release of norepinephrine, which activates the sympathetic nervous system, initiating your fight-or-flight response.

Adderall 还会导致去甲肾上腺素的释放，从而激活交感经系统，引发你的“战或逃”反应。

These three are all technically monoamines but norepinephrine and dopamine are classified as catecholamines.

严格说来，这三激素都属于单胺，但去甲肾上腺素和多巴胺也被归为儿茶酚胺。

And, interestingly, Noradrenaline, also called norepinephrine, is one of the neurotransmitters released when you are exposed to the cold.

有趣的是，去甲肾上腺素（又名 norepinephrine）正是大脑在寒冷环境中分泌的一经递质。

Higher levels of norepinephrine also apparently causes a tendency towards anger and aggression.

高水平的去甲肾上腺素能显著导致愤怒和攻击的倾向。