Multiple choice

Spicy foods make your mouth feel like it's burning because

  1. the same neuroreceptors that register heat are activated

  2. the acid in the food causes a sensory overload

  3. your brain retroactively anticipates the potential heat

  4. spicy foods have a chemical which humans are sensitive to
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Capsaicin, the chemical in spicy foods, binds to TRPV1 receptors on the tongue. These receptors are specifically designed to detect physical heat, causing the brain to perceive a burning sensation.

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