Regular opioid use can reduce the brain's production of which natural peptide?

Regular opioid use can reduce the brain's production of which natural peptide?

• A. Dopamine
• B. Endorphins
• C. Anandamides
• D. Gamma-Aminobutyric Acid

Answer: (B)

Endorphins are the brain’s natural peptide opioids that help regulate pain, mood, and stress. When someone uses opioids regularly, the brain adapts to the steady receptor activation by downregulating its own production of endorphins and dampening the endorphin system. This downregulation means there’s less endogenous endorphin available when the drug isn’t present, contributing to withdrawal, heightened pain, and cravings. The other options aren’t natural peptide opioids: dopamine is a monoamine neurotransmitter, not a peptide; anandamides are endocannabinoids (lipid signaling molecules); and GABA is another neurotransmitter, not a peptide.

Endorphins are the brain’s natural peptide opioids that help regulate pain, mood, and stress. When someone uses opioids regularly, the brain adapts to the steady receptor activation by downregulating its own production of endorphins and dampening the endorphin system. This downregulation means there’s less endogenous endorphin available when the drug isn’t present, contributing to withdrawal, heightened pain, and cravings. The other options aren’t natural peptide opioids: dopamine is a monoamine neurotransmitter, not a peptide; anandamides are endocannabinoids (lipid signaling molecules); and GABA is another neurotransmitter, not a peptide.