自身的神经系统利用肾上腺素，一种神经传递介质或者说是化学信使，把信号传递在身体的各个部位以刺激“战或逃反映”。

The autonomic nervous system USES the hormone adrenaline, a neurotransmitter, or chemical messenger, to send signals to various parts of the body to activate the fight-or-flight response.

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这些神经传递素在神经错乱中究竟是多了还是少了？修复这些神经传递素系统是否可能？

Are more or fewer of these neurotransmitters involved in such disorders, and is restoration of these neurotransmitter systems possible?

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这些脑系统都由特定的神经传递物调控，这些化学物质是负责脑部神经元之间讯息传递的。

All these brain systems are modulated by specific neurotransmitters, chemicals that carry messages between the brain's neurons.

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The nervous system does the same thing in a different way.

神经系统也传递信号,但原理有所不同

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One class of them is beta-blockers, they bind to beta-adrenergic receptors, which are receptors that exchange information between your nervous system and the contractile system that beats your heart and that causes the heartbeat.

一类药物是β阻断剂,它们与β肾上腺素受体结合,这种受体能够在神经系统和,控制心跳的心肌收缩系统之间传递信息,从而产生心跳

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