Norepinephrine

Norepinephrine, also known as noradrenaline or noradrenalin, that functions in the brain and body as a hormone and neurotransmitter. The general function of norepinephrine is to mobilize the brain and body for action. Norepinephrine release is lowest during sleep, rises during wakefulness, and reaches much higher levels during situations of stress or danger, in the so-called fight-or-flight response.

 

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