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

一旦吸引力被确，你的血液和肾上腺素一沸腾，激发你的“战斗或逃跑”系统。

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。

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

严格说来，这三种激素都属于单胺，但甲肾上腺素和多巴胺也被归为儿茶酚胺。

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

会失对5 羟色胺和正肾上腺素的敏感性 那就会引功能受损。

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。

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、甲肾上腺素所必须的；色氨酸是合成神经递质血清素所必须的。

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

首先，它能优化神经递质水平，如血清素、甲肾上腺素和多巴胺。

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甲肾上腺素以及 5-羟色胺水平。

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

这种抑制情绪的药物还能降低大脑中甲肾上腺素、多巴胺和 5-羟色胺的水平。

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

高水平的甲肾上腺素能显著导致愤怒和攻击的倾向。

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

无论清醒状态下还是睡着了，甲肾上腺素都能帮助人们记住各种事情。

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

或许你可能听过几种神经递质介质——5-羟色胺与降肾上腺素。

Norepinephrine is another neurotransmitter involved in attention and arousal.

甲肾上腺素是与注意和觉醒相关的另一种神经递质。

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

甲肾上腺素传递的紊乱也被为是抑郁症的关键诱因。

Norepinephrine is always present at some level while you're awake.

你在清醒时，甲肾上腺素总保持在一定程度上。

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

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

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

有趣的是，甲肾上腺素（又名 norepinephrine）正是大脑在寒冷环境中分泌的一种神经递质。

When you fall asleep though, your norepinephrine levels drop.

当你入睡时，甲肾上腺素水平会下降。

SSRI's help regulate serotonin levels in the brain, while SNRIs help regulate serotonin, norepinephrine and dopamine, to manage anxiety.

SSRIs帮助调节大脑中5-羟色胺的水平，而SNRIs帮助调节5-羟色胺、甲肾上腺素和多巴胺水平，以调节焦虑。