Norepinephrine

Norepinephrine, also known as noradrenaline, acts as a neurotransmitter and as a stress hormone, controlling the body’s “fight or flight” response. Secreted by the adrenal gland and by nerve endings in the sympathetic nervous system, norepinephrine regulates arousal in times of physical and mental stress and helps us stay alert in dangerous situations. It is also administered as a drug in medical emergencies to raise blood pressure and heart rate.

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