When you eat something spicy like a chili pepper, your mouth feels hot even if the food is cold. This happens because of a special protein called TRPV1 in your tongue that acts like a heat detector.
The Heat Trick
Chili peppers contain a chemical called capsaicin. Capaicin fits into those heat detectors like a key in a lock. It tells your brain 'I am hot!' just like touching a stove.
Cooling Down
Your brain hears the alarm and says, 'Okay, let's cool off.' It sends signals to your sweat glands to start working. You might get sweaty on your face or forehead even if it is not actually hot outside.
It is like wearing a winter coat in summer but feeling fine because you are being careful. Your body thinks the chili is making you burn, so it opens windows (sweat) to let out the heat.
Examples
- Eating a cold slice of pizza with pepperoni makes your forehead sweat.
- Your face turns red and you feel warm even in an air-conditioned room.
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See also
- What makes spicy food feel hot in our mouths?
- How Does The Real Reason Peppers are Spicy Work?
- How Does the Human Body Process Spicy Food?
- How Does Spicy Food: the Story of the Chili Pepper in Asia Work?
- How Eating Spicy Food Affects Your Brain And Body | The Human Body?