Alarm reaction

Definition

Alarm reaction is the initial response of the body to stress, engaging the adrenal glands to release adrenaline and cortisol, initiating the "fight or flight" response. This phase is part of the General Adaptation Syndrome, preparing the body to either face or flee from perceived threats.

Related terms

Adrenaline:

A hormone released by the adrenal glands that increases heart rate, muscle strength, blood pressure, and sugar metabolism in response to stress.

Cortisol: A steroid hormone produced by the adrenal cortex that regulates a wide range of processes throughout the body including metabolism and immune response, especially in times of stress.

Fight or Flight Response: A physiological reaction that occurs in response to a perceived harmful event, attack, or threat to survival, involving both adrenaline and cortisol release