Later, after continuous exploration by scientists, it was found that 37 degrees can be used as the average value, so this conclusion has continued until now. The reason why human body temperature has always been maintained at 37 degrees is all because of the natural choice and the survival of the fittest. Over millions of years of evolution, human body temperature has remained at 37 degrees. Not only humans, but all the constant temperature animals on the earth have maintained their body temperatures at 35 to 40 degrees Celsius.
A scientist named Paul once proposed the conclusion that humans are constant temperature animals. Only at 37 degrees, the enzymes in the body have the best activity. Enzymes that remain in the best state can help the human body better participate in various biochemical reactions , so the human body will be at 37 degrees, while mammals in nature are 35 degrees to 40 degrees Celsius, mainly because this temperature can allow animals to better adapt to environmental changes in the wild and will not restrict their activities due to body temperature.
But not all animals on the earth are constant temperature animals, and the body temperature of many animals changes with the outside world, but on the historical stage, constant temperature animals defeated the temperature variable animals. They can adapt to changes in nature and resist natural enemies more than temperature variable animals. It is precisely because humans have maintained their body temperature at 37 degrees that they have withstood. However, in recent years, scientists have discovered that human body temperature is getting lower and lower. What's going on?
warming animal
In the past, we all said that 37 degrees was the normal body temperature of human . However, in 2020, researchers from Stanford University conducted a study. They found the temperature records of more than 80,000 American soldiers in 1862, and then began to measure human body temperature in 2000, comparing past data with current body temperature data in detail. It was found that the average body temperature of American men did drop by 0.59 degrees, while the body temperature of American women also dropped by 0.32 degrees. In other words, the average body temperature of Americans has dropped to 36 degrees Celsius.
Not only that, Brigham Women's Hospital affiliated to Harvard Medical School also published a paper,
studied them, and they conducted 24,356 temperature measurements on 35,488 adults in the UK who were healthy, had no diseases, and had not received any antibiotic treatment. After counting the body temperature data of these people, their average oral temperature was only 36.6. In other words, the body temperature is really dropping. However, scientists believe that the standard body temperature of the human body is no longer 37 degrees, which may be related to changes in the human living environment, such as changes in the climate environment. The global greenhouse effect makes the temperature in many places higher and higher, so air conditioners become used on a large scale, and humans become comfortable because of air conditioners. For example, in the air conditioning environment for a long time, humans sweat less and less, and the body temperature regulation center is not as sensitive as before, so the body temperature naturally changes.
Another reason is that the human body lacks movement. After the development of science and technology in human society, a lot of labor is completed by machines. The number of human labor becomes less and less, and the metabolism is reduced. At the same time, the basal metabolic rate is also reduced, and the body temperature also decreases with the decrease of energy consumption. Some people say that lowering body temperature can increase a person's life span. Is this true?
People's body temperature has been dropping. Can it really extend your life span? Some scientists believe that the higher the body temperature of the human body, the higher the consumption and operation are required. When the body temperature drops, the body's operation is also in a low state, so that the life span of a person may run longer. But this statement only applies to animals. Some scientists conducted an experiment with mice to compare two small mice with different body temperatures. The results showed that the lifespan of mice with high body temperature was greatly reduced, while the one with low body temperature lived longer. Therefore, scientists concluded that high body temperature is not good for animals.
But some scientists believe that when humans are low in temperature, they are more likely to live longer. Scientists believe that there are some longevity signals in the human body. These longevity signals like low temperatures. Only in low temperatures can these longevity signals be activated.If we look at the longevity signal, low temperatures are indeed more likely to live longer, but low temperatures actually have more disadvantages, and these disadvantages are not conducive to longevity.
Like people with low temperatures, the blood circulation is slower. As we all know, after exercising and sweating, the body's temperature will become higher, the blood circulation will be accelerated, and the body's metabolism will become faster. Rapid metabolism can enhance the body's resistance, so people will not be prone to illness. However, for people with low temperatures, their blood circulation is very slow, and their metabolism is even slower. The body's toxins and dirty things cannot be excreted in time because they are too slow to metabolize, and they are constantly stored in the body, so the body's resistance and immunity will become worse, so people with low temperatures will always get sick and catch colds.
It can be said that when a person's body temperature drops by one degree Celsius, the body's immunity will drop by 30%. Not only does it take for a cold, but also the prevalence of cancer increases, so a decrease in body temperature will not prolong life. What do you think about human body temperature? Welcome to leave a message in the comment area and discuss with everyone.
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