Useful Tips

Entertaining physiology: how a person adapts to heat

Pin
Send
Share
Send
Send


In hot climates, the air will seem to you just burning, but do not rush to immediately put on shirts. If you already know that it is difficult to tolerate acclimatization, you should have a light cape or at least a pareo ready. The desire to quickly plunge into the sea waves playing in the sun is understandable, but reckless. The fact is that temporary violations of heat transfer can play a cruel joke: for a person from the northern latitudes, the water will seem warmer than it actually is. Therefore, on the day of arrival, refrain from swimming in the sea.

Drink more still and unsweetened water, rinse your mouth. This will greatly help the body replenish the lost water balance in the way. Dehydration will also provoke a dry climate in a hot country, so a few glasses of water drunk during the day will maintain performance and relieve headaches. But coffee consumption is best reduced to a minimum. If you don’t want digestion problems, give up a day of exotic delicacies, as well as any fatty foods.

Be sure to bring a medicine cabinet with you. It should have an antipyretic, analgesic, medications that stimulate the stomach and intestines, as well as sunscreens and lozenges from motion sickness. To prevent possible malfunctions of the body, doctors recommend planning a trip with one or two short stops along the way. So you gradually get used to a warmer climate and much easier to adapt to the heat.

Why does the brain resist heat?

In the brain, or rather, in the hypothalamus, there is a center of temperature perception. At an air temperature of 16-25 degrees, the receptors of this department function quite normally, but at a temperature of 28 degrees, this part of the brain gradually begins to lose its tolerance. Air temperatures in excess of 30 degrees can cause pain and heat shock. At a total body temperature of 43 degrees, brain death occurs. Why is the brain so critical of heat?

The fact is that with critical heating of the body, proteins begin to change their structure, which has a destructive effect on all cells of the body. As a result, the brain dies first. Nevertheless, people willingly visit saunas, baths, travel to tropical countries and return from there alive, with an absolutely unscathed brain. How is this possible?

How does the body adapt to heat?

It is known that the human body is able to tolerate temperatures of 90 degrees, however, this vital property ends in death after the 20th minute. It is also worth noting that 70% of people are able to survive at a temperature of up to 43 degrees, but only if the correct medical care has been provided. This suggests that, under certain conditions, the body has the ability to adapt to high temperatures.

This helps a special system of thermoregulation. It consists of blood vessels, sweat glands and skin.

The skin serves as a kind of barrier that allows the body to maintain a normal temperature under the influence of heat from the environment. Sweat glands, in turn, cool the skin, moisturizing it with their secretions. To maintain health, it is necessary to replenish this water and salt balance, since the main components of sweat are salt and water. For this reason, during the heat, a person wants to consume more water and cold foods, and sometimes even draws on pickled cucumbers. In addition, a decrease in appetite during the heat is also considered the norm. The metabolic process warms the body somewhat, knowing this, the brain and the body as a whole are in no hurry to starve in order to maintain their healthy state.

In the event that the body temperature exceeds normal, the body urgently needs medical attention to normalize thermoregulation. This is due to the fact that the body alone cannot eliminate the cause of the increase in its temperature, since it is associated with the development of the disease. Nevertheless, it is important to maintain the body's hydro-balance by wiping the body with water at room temperature. In some cases, doctors recommend wiping parts of the body with ice. Ice should be wrapped in a cloth bag. They need to process those parts of the body where the blood vessels are located closest to the skin. These include the inguinal zone, neck and armpits. This helps to slightly cool the body and minimize its damage.

Interesting facts about a hot body

It is known that the human body tolerates heat much better in a dry climate than in a humid one. This is due to the fact that in a dry climate, moisturized sweat dries much faster, which helps it to cool.

With complex physical work in the heat, a person loses about 10-12 liters of water and 20 grams of salt, which is about two teaspoons.

A European living in a tropical climate or in the desert suffers one week of acclimatization, which is accompanied by increased weakness. After, his body returns to tone.

With strong physical exertion, the internal temperature of the muscles can reach 42 degrees, which does not pose a danger to general health.

Once in a cold room without clothes, body temperature can drop to 27 degrees.

Throughout the day, body temperature fluctuates. The lowest temperature is recorded at dawn and can exceed the norm by one degree by the end of the day.

Pin
Send
Share
Send
Send