Mint

Anyone who has ever tried mints or gum, familiar sensation of cold in the mouth. But few people know why it occurs. It is known that cold we feel cold receptors that are found on the skin and mucous membranes of the body. If the temperature falls below a certain level, the brain sends a nerve impulse, after which the vessels are narrowed, and blood flows menshe.

However, these receptors react not only on the temperature but also on some substances, one of which contained the menthol in peppermint. In fact, menthol does not cool the mouth, it only creates the illusion of a cold. He makes all of our partially insensitive receptors than of cold. And they in turn send a nerve impulse to the brain, as well as when exposed to low temperatures. It is interesting that in a similar way, but with the opposite effect on the active substance capsaicin thermoreceptors. It is contained in different kinds of peppers and gives it a burning taste. Therefore peppered food feels hot in the mouth.

Source: mirfactov.com/