Stress Hormones

Definition

Stress hormones are chemicals released into the body in response to stress. They include cortisol, adrenaline (also known as epinephrine), and norepinephrine.

Related terms

Fight-or-Flight Response:

A physiological reaction that occurs in response to a perceived harmful event or threat to survival. It involves the release of adrenaline and norepinephrine.

Cortisol:

Often called the "stress hormone," cortisol regulates a wide range of processes throughout the body including metabolism and immune response.

Adrenal Glands:

These are small glands located on top of each kidney. They produce hormones including adrenaline and cortisol in response to stress.