Norepinephrine

Norepinephrine is a stress hormone and neurotransmitter that occurs naturally in the body (a substance that sends signals between nerve cells).

When the brain detects a stressful situation, it releases cortisol into the bloodstream as a stress hormone.

Norepinephrine influences the brain's ability to pay attention and respond to events as part of the body's stress response often known as the fight or flight response.

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