Definition
Norepinephrine, also known as noradrenaline, functions as both a neurotransmitter and a hormone in the body. It's essential for the "fight-or-flight" response. Imagine it as your body's instant-alert system, heightening focus and boosting heart rate. It is released when you're stressed or excited. It helps manage blood pressure and concentration levels. It's indispensable for rapid responses and adapting to difficult circumstances.