Which common spice is cited as blocking Substance P flow in the material?

Which common spice is cited as blocking Substance P flow in the material?

• A. Chili Pepper
• B. Garlic
• C. Peppermint
• D. Cinnamon

Answer: (A)

Capsaicin in chili peppers binds to receptors on pain-sensing neurons and causes initial activation followed by depletion of Substance P, a neuropeptide that transmits pain signals. When Substance P is depleted from the nerve endings, the transmission of pain is reduced, effectively blocking Substance P flow and lowering pain perception. This mechanism explains why chili peppers are cited for this effect. Other common spices don’t produce the same direct depletion of Substance P—garlic, peppermint, and cinnamon can influence inflammation or sensation in other ways, but they do not block Substance P release in the same manner as capsaicin.

Capsaicin in chili peppers binds to receptors on pain-sensing neurons and causes initial activation followed by depletion of Substance P, a neuropeptide that transmits pain signals. When Substance P is depleted from the nerve endings, the transmission of pain is reduced, effectively blocking Substance P flow and lowering pain perception. This mechanism explains why chili peppers are cited for this effect. Other common spices don’t produce the same direct depletion of Substance P—garlic, peppermint, and cinnamon can influence inflammation or sensation in other ways, but they do not block Substance P release in the same manner as capsaicin.