ultrafacts:You’re chewing mint gum or sucking on a peppermint…


You’re chewing mint gum or sucking on a peppermint candy and draw in a breath of air and no matter how warm it is, the air feels icy cold. Why does this happen? It’s a trick mint and the chemical called menthol play on your brain that convinces your taste receptors they are exposed to

Sensory neurons in your skin and mouth contain a protein called transient receptor potential cation channel subfamily M member 8 (TRPM8)

Mint contains an organic compound called menthol that binds to TRPM8, making the ion channel open as if the receptor was
exposed to cold and signaling this information to your brain. In fact,
menthol sensitizes the neurons to the effect doesn’t wear off as soon as
your spit out mint toothpaste or stop chewing a breath mint. If you
take a sip of cold water right afterward, the cool temperature will feel
especially cold.

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Source: Ultra Facts
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