Why is the body warm? Detailed answer

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Why is the body warm? Detailed answer

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Why is the body warm?

To perform its tasks, the body needs energy. This energy is obtained in the process of oxidation. The fuel for this process is the food we eat. The result of this oxidation or combustion is not, of course, fire or high temperature. There are substances in the body whose task is to combine oxygen with fuel in an orderly, regulated way.

The body maintains an average body temperature of about 37°C, and this temperature is constantly maintained. This makes one of the centers of the brain, which is called the temperature center. In fact, it consists of three centers: the control center that regulates the temperature of the blood, the center that raises the temperature of the blood if it drops, the third center cools the blood if the temperature is too high.

What happens when the blood temperature drops? Part of the nervous system comes into play. Certain glands send enzymes to the muscles and liver to increase oxidation, and the core temperature rises.

In addition, the blood vessels of the skin are constricted to reduce heat loss due to thermal radiation. Even tiny glands on the surface of the skin help with this by producing fat that reduces heat loss. When the blood temperature drops too low, a shake is automatically activated. The temperature center of the brain makes you shiver to keep warm! If the temperature of the blood rises, the cooling center comes into play. It dilates the blood vessels of the skin so that excess heat escapes into the atmosphere, and sweat evaporates more easily.

Sweating is a quick method of cooling the entire body. When the liquid evaporates, it cools the place where it is located.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

Why did European navigators before 1473 fear approaching the equator?

Having reached the Gulf of Guinea in 1462 and thus approaching very close to the equator, the Portuguese navigators did not dare to cross it for a long time.

Ancient legends said that the water to the south of the equator becomes denser and may even boil, which made one beware of the southern seas. Only in 1473, the Portuguese Lopo Gonçalves refuted these superstitions: he crossed the equator without any damage to the ship and crew.

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