Caffeine is a pro at mimicking a neurotransmitter called adenosine.

咖啡因是一种能够像“腺苷”神经递质一样在神经细胞间传递。

These cannabonoids are specialized neurotransmitters released by neurons having just fired.

这些大麻素是一直处于发送状态的神经元释放的特化神经递质。

Pleasurable experiences flush certain parts of our brain with dopamine, a neurotransmitter.

愉快的经历使我们大脑的某些分充满了多巴胺（一种神经递质）。

When we do something nice for someone, our brains release three different neurotransmitters, dopamine, oxytocin and serotonin.

当我们为别人做一件好事时，我们的大脑会释放三种同的神经递质，多巴胺、催产素和血清素。

But in your brain, it helps regulate different neurotransmitters and can influence how sleepy you feel.

但在你的大脑里，它的作用是协助调节同的神经传导物质，从而影响你对困意的感觉。

Serotonin is one of the oldest neurotransmitters.

“血清素是最古老的神经递质之一。”

On the flip side, the main inhibitory neurotransmitter in the brain is GABA.

另一方面，脑的抑制性神经递质为GABA。

Your neurotransmitter levels are rising steadily.

你的神经递质激素水平正稳步上升。

One of those relief-providing chemicals is serotonin, a neurotransmitter.

提供缓解的化学物质之一是血清素，一种神经递质。

When these three neurotransmitters are in deficit, people become depressed.

当缺乏这三种神经传导素时，一个人就会变得抑郁。

When this pathway activates, the neurotransmitter starts a chain reaction.

当这一途径激活时，神经递质开始连锁反应。

Serotonin is a neurotransmitter — a chemical that neurons use to signal each other.

5-羟色胺是一种神经递质，是神经元用来互相发出号的化学物质。

This is attributed to the overabundance of a neurotransmitter called dopamine.

这是由于存在过多的神经递质多巴胺导致的。

Our motivation levels are affected by dopamine, a hormone and neurotransmitter.

我们的动力水平受到多巴胺的影响，多巴胺是一种激素和神经递质。

You've probably heard about the neurotransmitter serotonin being associated with happiness.

你可能听说过血清素与幸福感的产生有关。

That learning, the researchers found, is made possible by the neurotransmitter dopamine.

研究人员发现，这种学习通过神经递质多巴胺来实现。

And at the end of that second, postganglionic neuron, the fiber releases a different neurotransmitter.

在那一秒钟的末尾，节后神经元，纤维会释放同的神经递质。

The main excitatory neurotransmitter in the brain is glutamate.

脑的兴奋性神经递质为谷氨酸。

And without this neurotransmitter, mosquitoes become much worse at learning to avoid danger.

失去这种神经递质以后，蚊子学习躲避危险的能力被大大削弱。

It's a neurotransmitter that helps promote feelings of attraction, excitement, and giddiness.

它是一种神经递质，有助于促进吸引、兴奋和头晕的感觉。