Definition
Noradrenaline, also known as norepinephrine, is a neurotransmitter and hormone. It plays a vital role in the body's "fight-or-flight" response. Think of it as the body's alarm system, triggering alertness, focus, and increased heart rate. It's released in response to stress or excitement. It helps regulate blood pressure and attention. It's crucial for quick reactions and adapting to challenging situations.