The biological trick behind the chili pepper's heat
In short: Ever wondered why a chili pepper feels like it is literally burning? This video explores the chemical deception used by plants to trigger your pain receptors.
The sensation of heat from chili peppers is caused by capsaicin molecules. These molecules bind to the heat pain receptors in your mouth, creating a signal to your brain that is identical to the sensation of eating something physically hot. While this chemical evolved as a defense mechanism to prevent animals from eating the plants, humans have developed a taste for the intense sensation.
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Sources
- Summary by Intellect · source: Why Hot Peppers Set Your Mouth on Fire | NOVA | PBS
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