Common sense has always told us that the normal body temperature of a person is about 37°C, but why is the body temperature of everyone around us less than 37°C?
Julie Parsonnet, a professor at Stanford University School of Medicine, and her team have just released a study that found that the average body temperature of adults has been declining since the 19th century, falling by 0.4°C in less than 200 years, from 37°C to 36.6°C.
37°C has become a historical drop in body temperature is not a good thing
A few days ago, I read an article about bats, and I don't know if it is authoritative, but I can give you some inspiration:
Virology decryption: Why can bats seal hundreds of viruses in their bodies? The root cause is simple: because it can fly, and those who have seen it know that bats have a strong immune system, largely because they can maintain a high body temperature of 40°C.
Studies have shown that for every 1°C decrease in body temperature, immunity decreases by more than 30%; For every 1°C increase in body temperature, immunity will increase by 5~6 times, and if you look at it this way, the immunity of bats is probably hundreds of times higher than that of humans - no wonder bats are not poisonous and will not get cancer ......
Why does when body temperature decreases, so does immunity?
As we all know, body temperature is linked to basal metabolic rate, and for every 1°C increase in body temperature, basal metabolism will increase by 13%. Low body temperature can mean poor metabolism.
Conversely, the basal metabolic rate is low, the body temperature drops, the blood flow rate slows down, and the efficiency of white blood cells decreases. It is difficult for the white blood cells to detect the foreign body in the first place, and even if a foreign body is found, it is difficult to quickly gather other white blood cells to destroy the foreign body, causing the body to be easily infected with viruses and bacteria, causing diseases.
In addition, white blood cells can not only resist the attack of external viruses and bacteria, but also detect cancer cells in the body and kill them in time.
In fact, even healthy people produce about 5,000 cancer cells in their bodies every day. If one of them evades the immune system's surveillance and survives, it will soon be 1 to 2, 2 to 4, 4 to 8...... Eventually, it evolves into a tumor ......
Why does the body temperature of modern humans decrease?
The researchers believe that the decline in the average body temperature of Americans can be explained by a decrease in metabolic rate or a decrease in energy expenditure. This reduction in energy expenditure may be due to reduced inflammation in the body. Inflammation produces a wide variety of proteins and cytokines, which speed up your metabolism and raise your body temperature.
Over the past two centuries, public health has improved dramatically with advances in medical conditions, improved living standards, and a better food supply. The research team also believes that the long-term exposure to suitable temperatures for modern humans is also one of the reasons for the reduction in energy consumption. In the 19th century, there was no air conditioning in the summer, and heating in the winter was not widespread. Nowadays, a central air conditioner solves all the problems.
Human body temperature is a manifestation of basal metabolic rate, which in turn is related to longevity (higher metabolic rate, shorter lifespan) and body size (lower metabolism, greater body weight). Changes in human body temperature over time provide important clues to the changes in human health and longevity since the Industrial Revolution.
From a physiological point of view, we are already human beings who have evolved over time, and modern human beings have become different from ordinary people in the 19th century, and even different from people in the 60s of the last century.
1. The main reason is the lack of exercise
scientists, human body temperature has dropped by 0.4°C in 170 years, and the decline in the past 20 years is particularly large, and the main reason is lack of exercise.
Not so far ago, 50 years ago, people had to do a lot of exercise every day: people in the countryside would grow crops or graze their cattle, and even people in the city would hand wash their clothes, cook their own meals, and clean their houses every day; People give priority to walking or biking when they go out, and rely on outdoor sports to pass the time in their free time.
However, with the development of science and technology, people seem to be getting more and more "lazy" -
eating
by takeout, taking a taxi when going out, washing clothes with a washing machine, washing dishes with a dishwasher, sweeping the floor with a robot, lying in bed and playing games at any time, the campus scene of boys playing basketball and girls playing shuttlecock is gone.
Basal metabolism has nothing to do with any external activity, it is the natural exertion of a person when he does nothing, and muscles are the largest heat-generating organ in the human body. Less muscle means lower body temperature and lower basal metabolism.
A person with high muscle content is still consuming energy even if they do nothing. The decrease in the amount of exercise in modern people has led to a general low muscle mass.
When basal metabolism decreases, energy expenditure decreases, and visceral fat increases. Visceral adipose tissue will secrete more than 20 kinds of bad hormones (or fat cytokines), which can cause vasculitis and weaken the function of insulin, which can lead to a series of diseases such as cancer, high blood pressure, and diabetes.
2. The ubiquitous air conditioner makes the thermoregulatory center no longer sensitiveExperts
believe that in addition to the decline in muscle mass, the difficulty of sweating caused by air conditioning is also a major reason for the drop in body temperature in modern people. When people work and live in air-conditioned houses for a long time, the thermoregulatory center of the hypothalamus of the brain loses the opportunity to receive stimuli, and over time, the thermoregulatory center will no longer be sensitive to the outside temperature, resulting in a decrease in body temperature.
Fifty years ago, the average body temperature of a child was around 37 degrees, and the average body temperature of an adult was between 36.5-36.8 degrees. Now, what you may not expect is that your normal body temperature is not 36.5 degrees.
Modern life, irrational diet and wrong lifestyle habits have lowered our body temperature by nearly one degree. Studies have shown that if the body temperature is lowered by one degree, the immunity will be reduced by more than 30%, on the contrary, if the body temperature is increased by one degree on the basis of normal body temperature, the immunity will increase by 5~6 times.
The ideal body temperature of the human body is 36.5~36.8 degrees. In particular, 36.5 degrees can be said to be a watershed, below this temperature, the physical discomfort will accompany you throughout your life, above this temperature, you will not have to worry about health problems in your life, and you will be able to live a vigorous life. If you want to live as you wish, you must maintain a basic body temperature of 36.5 degrees. If you want to write a colorful life, please make a body temperature of 36.5 degrees Celsius your goal.
If you want to be healthy, you should first adjust your body temperature, and want to know how to improve your physical condition and live a healthier and better life? The method is extremely simple: raise your body temperature. Everyone's normal body temperature is different, have you ever thought about the relationship between body temperature and exercise?
Is your normal body temperature related to your immunity? It is very miraculous, it can not only affect the body's metabolism, but also closely related to immunity and autonomic nervous system.
If you want to be healthy and lose weight, you must first adjust your body temperature.
is an important indicator of physical health compared to changes in weight and body fat. As long as the body temperature rises, you can automatically burn fat even without restricting your diet and exercising vigorously. Because a 1°C increase in body temperature also increases metabolism by 12%. Therefore, it is easy to lose weight without restricting the diet.
In addition, once the body becomes warm and comfortable, it is easier to drain water, so the bloated lower body and protruding lower abdomen are also easy to solve.
The body temperature of 35°C is the best temperature for cancer cells to multiply.
Cancer cells multiply in organs such as the stomach, large intestine, esophagus, uterus, and lungs when the temperature of the internal organs is low, but on the contrary, they cannot survive in the heart and spleen, which are hot.
Edema is a condition in which excess water is stored under the skin tissue and cannot be discharged. Low body temperature naturally reduces fluid excretion, and fluid that cannot be excreted remains in the body, which is the main cause of lower abdominal protrusion and leg edema in the first place.
If the kidneys are warmed by circulating body temperature, not only will urine flow smoothly, but also the protrusion of the lower abdomen and edema will naturally disappear, so you will have a constitution with good water metabolism.
drinking more water is good for constipation, for women, constipation is basically caused by low gastrointestinal temperature and poor peristalsis. For these "cold enter" people, consuming more water will only make constipation worse.
Allowing the body temperature to circulate to warm the lower abdomen and stomach, or taking a bath will warm the stomach and intestines, and constipation will be eliminated.
and cold are closely related to the spirit. I feel unclear in the morning because my body temperature is too low and my blood cannot be transported to the brain. At the same time, people with low body temperature are prone to depression and depression due to poor blood circulation.
In addition, the cold period from November to March of the following year is the season when people with "cold constitution" are prone to sleepiness.
6. Gynecological diseasesFor
people with "cold constitution", if there is a snapping sound in the cold winter, it indicates that the stomach and intestines accumulate too much water, which makes the lower abdomen cold. Some causes of uterine fibroids, uterine cancer, and ovarian cancer are cold in the lower abdomen.
who are struggling with infertility also have the characteristics of a "cold constitution". Let the body temperature circulate to warm the lower abdomen, so that the blood circulation of the uterus and ovaries is smoother, and it has a fertile physique.
8. Have you ever had insomnia
when you had cold feet and couldn't sleep? Once a person with a "cold constitution" feels cold in his feet, the main blood in his body will rush to his head, because the brain is congested, making it difficult for the cranial nerves to rest, and they cannot reach a state of deep sleep.
are common skin diseases for people with a "cold constitution". Allergic symptoms such as dermatitis, eczema, hay fever and rhinitis are actually an instinctive reaction of the skin to forcibly drain water from the body in order to achieve a healthy state by being in a "cold constitution" for a long time.
Anyone with a "cold constitution" often has symptoms of back pain. Back pain is a condition caused by poor blood circulation due to long-term exposure to local cold.
Therefore, avoiding cold in the lower back or applying hot compresses in sore and unbearable areas will improve blood circulationHow
to raise body temperature?
1. Soak your feet every day
, Liao Haolei, professor of clinical epidemiology at the School of Health Sciences of Wuhan University, said that strengthening exercise and nutrition can indeed increase the body's basal metabolic rate and increase basal body temperature. However, "freezing three feet, not a day's cold", exercise and nutrition need to be adhered to for a long time.
If we want to raise our body temperature and strengthen our immunity, we need to go through physical therapy and behavioral therapy: it is best to wear a hat in winter, soak your feet and take a hot bath every day, and drink plenty of hot water.
Now everyone stays at home, and there is nothing to soak in their feet, three times a day.
exerciseIn the current special period, it is not advisable to temporarily carry out high-heart-rate, high-intensity exercise, which will reduce resistance.
Young people can do planks and push-ups at home, walk briskly on the treadmill, middle-aged and elderly people can do tai chi and health exercises, and women can do aerobics and yoga for about 30 minutes.
It is better to have a heart rate between 120 and 150 during exercise, which not only achieves the effect of exercise, but also does not exceed the physical capacity of ordinary citizens.
