What is the hormone commonly known as the stress hormone?

What is the hormone commonly known as the stress hormone?

• A. Cortisol
• B. Adrenaline
• C. Dopamine
• D. Serotonin

Answer: (A)

Understanding which hormone is most tied to the body's response to stress helps explain why cortisol is the go-to label. When stress is perceived, the brain signals the hypothalamus to release CRH, which prompts the pituitary to release ACTH, and that tells the adrenal cortex to produce cortisol. Cortisol then elevates blood sugar, mobilizes energy, and modulates various bodily processes to sustain a lengthy stress response. Its effects are widespread and longer-lasting, which is why it’s commonly called the stress hormone. Adrenaline (epinephrine) is also involved in stress, but its role is to trigger the immediate fight-or-flight response—rapid changes like a fast heartbeat and quick energy release. Those effects are short-lived compared to cortisol’s longer action. Dopamine and serotonin are important mood-related neurotransmitters, not the primary hormones behind the stress response. So, cortisol is the hormone most commonly associated with stress, making it the best answer.

Understanding which hormone is most tied to the body's response to stress helps explain why cortisol is the go-to label. When stress is perceived, the brain signals the hypothalamus to release CRH, which prompts the pituitary to release ACTH, and that tells the adrenal cortex to produce cortisol. Cortisol then elevates blood sugar, mobilizes energy, and modulates various bodily processes to sustain a lengthy stress response. Its effects are widespread and longer-lasting, which is why it’s commonly called the stress hormone.

Adrenaline (epinephrine) is also involved in stress, but its role is to trigger the immediate fight-or-flight response—rapid changes like a fast heartbeat and quick energy release. Those effects are short-lived compared to cortisol’s longer action. Dopamine and serotonin are important mood-related neurotransmitters, not the primary hormones behind the stress response.

So, cortisol is the hormone most commonly associated with stress, making it the best answer.