Why shouldn't you drink a hot drink when you're cold?

It is a natural reflex. When it is cold, we want to warm up by drinking a hot drink, tea, coffee or hot chocolate for example. Unfortunately, that's a bad idea. Certainly, in the moment and for a short term, one feels a sensation of warmth, but it is immediately counterbalanced by a counterproductive phenome. When we drink, the hot drink gives the sensors on the mouth and tongue a false information: the body is hot. As a result, the brain reacts immediately by adjusting its internal temperature. To do this, it activates perspiration, which cools the body. This leads to the exact opposite of the desired result...

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