37oC - Why?

One strange thing is that among more than 6 billion people on earth, each person has its own characteristics different in height, weight, age, gender . and different environments such as geography , climate, race . but all humans living on earth have the same common trait, that is, the body temperature (body temperature) is always around 37 ^o C.

Why is the body temperature always 37 ^o C?

The human body temperature always stays at a constant level of about 37 ^° C but not at any other temperature? This problem also contains many mysteries and controversies in the scientific world. However, today science has shed some light on this issue: Basically, of the total energy of the human body and other mammals, up to 70% of the energy is transformed into heat. This heat then spreads to the surrounding environment, otherwise the body accumulates too much heat, causing overheating, stagnating the normal activities of the body. The mechanism for producing extremely complex heat is placed under close supervision of the brain.

Put the temperature in your mouth to know the temperature.

In a state of heat, the brain and organs in the body, such as the heart, liver, and kidneys, produce more than two-thirds of the body's total heat produced, while their quality is only accounts for less than 10% of the whole body. When exercising, the heat that the muscles produce can increase 10 times. So even if the heat is produced at the peak state, the body temperature remains stable, because when the body simultaneously produces heat, it is also when the brain commands the organs. Concerning carrying out excretion of heat to the surrounding environment.

The steps of the heat transfer mechanism are complex, but it is generally understood that the principle is as follows: a place with higher heat will transfer heat to a lower place, all parts have thermal radiation function and heat absorption. Based on this principle, the scientists explained that with the current climate, the environment of the earth, the average temperature of the human body at about 37 ^° C is suitable for The body's heat production and dispersal rate is adaptable to all types of weather and brain adaptation, as well as agencies that achieve the highest performance.

However, the mechanism of action as well as the complexity of chemical reactions for humans to be compatible with a constant body temperature of 37 ^o C also contains many unexplored secrets. These initial explanations are just the basis for developing further scientific studies.

The magic of 'air conditioning' in the body

Like other mammals, there is a self-regulating system in the human body. This system is capable of sensitizing and adapting to changes in the natural environment. In the usual case, the body temperature does not change with the change of the environment, because the 'air conditioner' in the human body can pass through the central region regulating the body temperature located in the brain. Autonomy and rapid execution of two functions are heat and heat production, which keeps the body at constant temperature.

When the human body has to cope with the burning summer days, the slight change in blood temperature will relax the blood vessels under the skin, promoting the skin to radiate directly outside.

On the contrary, on winter days with cold monsoon winds, cold stimulation will affect the central area to regulate body temperature, causing blood vessels under the skin to shrink, reducing body temperature, reducing Minimizing the heat of the skin, while increasing the muscle tension, improving metabolism, appearing 'shivering', the body enhances the production of heat.

With such a regulation mechanism, the human body temperature is always kept at a constant level of about 37 ^° C. However, when the 'air conditioner' has a malfunction or failure, the body temperature can be elevated or immediately below the level of 37 ^o C, there are abnormal signs such as people with dizziness, dizziness, fever . In case, body temperature falls below 31 ^o C or up to 42 ^o C, the risk of death is very high.

Although saying that the body temperature of a normal person is 37 ^degrees Celsius, that is just the general figure for body temperature, the temperature of different parts of the body is not the same. The temperature in the oral cavity is 0.3 - 0.5 ^o C lower than the body temperature. The temperature in the abdominal cavity is higher than the chest cavity, but the temperature in the liver is higher than other organs in the abdomen. The temperature in the liver can reach 38 - 39 ^o C. The skin temperature at the fingertips is very low, only about 30 ^o C, the temperature of the tip of the toe skin is only 25 ^o C .

Body temperature with changes in physiology

The fact that body temperature is not absolutely fixed, but according to scientists, the body temperature usually fluctuates according to the physiological phenomena of each individual.

Describe the temperature of body temperature by color.

During one day a night, body temperature also fluctuates. In the early morning, the body temperature is at its lowest, then gradually increases, reaching the darkest, reaching the maximum value. The evening temperature decreases gradually until the next morning to the smallest value. Oscillation varies between the maximum and the smallest value is about 1 ^o C.

Scientists have also demonstrated an association between body temperature, gender, age, state, thought, and emotion. Accordingly, female body temperature is usually slightly higher than the male body temperature of the same age. The female body temperature also changes with the menstrual cycle. Female body temperature during menstruation is usually lower than normal at 0.2 - 0.5 ^o C. Before menstruation and before pregnancy, women's body temperature is higher. According to scientists, the change in body temperature in women is mainly due to changes in female hormones.

For children, the central nervous system and the sweat glands on the skin are not fully developed, so the function of regulating body temperature is also poorer, especially for premature babies, the greater the temperature fluctuation. However, metabolic capacity in children is quite strong, so body temperature is often higher than adults. In contrast, in the elderly, metabolic capacity is low, so the temperature is often lower than that of adults.

The change in body temperature and the body's active state also have a very clear relationship. When the body is active and working with high intensity, the body temperature will increase from 1 to 2 ^o C, such as a marathon runner, strong muscle activity, during the process of increasing body temperature pretty much up. When touched or stressed out by the nerves, due to increased blood vessel tension, the body temperature is higher.