The biological clock of the human body: The human life process is complex and wonderful. It plays a charming "biorhythm symphony" all the time. This is what people usually call the biological clock. Biological clock, also called biological rhythm and biorhythm, refers to phenomena such as physiological, behavioral and morphological structure of organisms that change periodically over time. Scientists have discovered that biological clocks are diverse. In the human body, more than one hundred species have been discovered. The biological clock has a huge impact on human health. The entire human race works and rests according to a day and night cycle. The physiological indicators of the human body, such as body temperature, blood pressure, and pulse; human physical strength, emotion, intelligence, and women's menstrual cycle; signals in the body, such as brain waves, heart waves, and meridian potentials , changes in the electromagnetic field of the body, etc., will change periodically with the changes in day and night. No one denies that this series of phenomena has nothing to do with human health. Science has discovered that when the biological clock is disrupted, humans and even all life are prone to illness, aging or death. Some people's biological clocks have been relatively stable for decades, and their health status is good. However, once the biological clock is broken and remains in a disordered state for a long time, various discomforts or diseases will occur, and some may even be dangerous. life. It is said that the trademark of the famous European jujube whiskey is the head of a long-lived old man who lived to be 152 years old. At that time, the King of England wanted to see this long-lived old man, so he invited him to the palace to eat, drink and have fun as a grand treat. Unexpectedly, due to the sudden change in his life routine, the old man died a week later. In our lives, there are also some healthy old people who have worked hard all day long for decades and become healthier. One day, due to the filial piety of their children, they are allowed to rest and "enjoy peace and happiness". As a result, they either feel uncomfortable all over the body or become ill. rise. Some elderly people who have just retired are in worse physical condition than when they were at work. This is all related to sudden changes in their biological clocks. We believe that young people should understand, discover and master their biological clock as early as possible, and then gradually adapt to it to achieve benign effects. Elderly people should take good care of the biological clock that has been formed over decades, and do not change it easily to avoid causing biological clock disorders and affecting physical and mental health. Dear filial sons and daughters, don’t let the elderly accommodate your “filial piety” easily. According to the investigation, in a health care and rehabilitation center for the elderly, several elderly people in their 90s were in normal physical and mental condition at home. Their children sent them to the center so that they could receive good medical care. However, as a result, these elderly people They all died in less than half a month with "no illness". Whether this has something to do with the altered biological clock of the elderly, we cannot delve into. However, we believe that understanding, mastering, and complying with the biological clock is helpful for maintaining and improving people's physical and mental health.
How to adjust the biological clock?
In winter, people's appetite increases, but this does not mean that the human body needs more calories in winter. This is because the human body's "hormone clock" operates differently in cold climates. caused by changes.
Scientific research has found that the cold in winter affects the human body's endocrine system, increasing the body's secretion of thyroxine, adrenaline, etc., thereby promoting and accelerating the synthesis of the three major types of heat source nutrients: protein, fat, and carbohydrates. Decompose to enhance the body's ability to withstand cold, which causes excessive heat loss from the human body. Therefore, winter nutrition should focus on increasing heat energy, and you can appropriately consume more foods rich in carbohydrates and fats.
For people with weak constitutions but no serious diseases, they can appropriately choose some medicinal and edible foods according to their actual physical conditions, such as red dates, gorgon seeds, coix kernels, peanut kernels, and walnuts. Kernels, black sesame seeds, lotus seeds, yam, lentils, longan, hawthorn, caramel, etc., combined with nutritious foods, can achieve the purpose of tonic to keep out the cold.
For obese people, winter is a good time to lose weight and control obesity. At this time, obese people should eat less dinner and make it lighter. Nutrients taken in by the human body in the evening are easily converted into fat and stored. At the same time, the amount of activity in the evening is small. If the dinner is rich, blood lipids will easily rise and be deposited on the blood vessel wall, laying hidden dangers for arteriosclerosis.
Women should increase their intake of inorganic salts and vitamins in winter, especially calcium and iron, which should be adequately supplied. The elderly, children, and those with weak constitutions or patients with chronic wasting diseases have poor physiological cold tolerance. Cold is a great threat to them, and they especially need high-quality protein. Protein, fat and carbohydrate should maintain a reasonable proportion. The three should account for 13-15%, 25%-35% and 60-70% respectively.
The elderly should often eat whole grains, cereals and potatoes in winter. Such as corn, buckwheat, oats, sweet potatoes, potatoes, goat's milk, rabbit meat, animal liver, animal blood, tofu, sesame paste, brown sugar, dried shrimps, dried shrimps and colored leafy vegetables are suitable for eating in winter.
In addition, in winter, you should take supplements to keep out the cold. While adjusting your diet, you should also carry out cold tolerance exercises to enhance your adaptability. If you ignore the body's own physiological cold tolerance, blindly rely on food to keep out the cold, and eat too much high-calorie, high-fat foods and alcohol, it can cause and aggravate cardiovascular disease. Moreover, after winter, extra fat may grow, which will bring many adverse effects to those who are already obese or have poor cardiovascular function. Therefore, you should adhere to appropriate sports in winter, such as Tai Chi, walking, playing ball, etc., which can promote metabolism, speed up blood circulation throughout the body, enhance the digestion and absorption of nutrients in the gastrointestinal tract, and truly achieve the purpose of benefiting from food
224》How to adjust the biological clock
After a long period of review and preparation for exams, many candidates have formed the habit of going to bed late. Some people are still too lazy to get excited even around 10:00 in the morning. If you are still in this physiological state when you take the college entrance examination, it will be very disadvantageous, and you should pay attention to adjusting your biological clock.
The human biological clock is a physiological reflection formed over a long period of time. If you want to adjust to the best condition, you should start doing it about half a month before the exam. The first exam of the college entrance examination usually starts at 9:00 am. If candidates want to ensure that they have sufficient energy and moderate excitement, they must arrange their daily life according to the work and rest time during the college entrance examination and gradually adjust their biological clock.
The first step is to get rid of the habit of going to bed late and not sleeping in the next morning. Specifically, you must go to bed before 22:00 every night and get up around 6:00 to 6:30 the next morning. After getting up and washing up, I move my body, read a few pages of review materials, and have breakfast around 7:30. In this way, around 9:00, the whole person has gradually entered a state of excitement. In order to adapt to the exam, candidates can find some papers and try them out between 9:00 and 11:00. In this way, you can not only review it, but also experience the feeling of moderate tension.
After lunch, candidates should also rest for about an hour before reviewing according to the needs of the college entrance examination. So that you can be moderately excited during every exam.
Biological clock is also called physiological clock. It is an invisible "clock" in the organism. It is actually the internal rhythm of the organism's life activities. It is determined by the temporal structure order in the organism.
In recent years, chronobiology believes that the life of organisms and even plants moves cyclically with the alternation of day and night and the changing of the four seasons, revealing the cyclical rhythm of physiological activities. Ancient medicine regards the heaven and earth as the macrocosm and the human body as the microcosm, saying that the large and small universes are closely connected. Most of the activities of a healthy human body show a 24-hour circadian rhythm, which is compatible with the 24-hour cycle formed by the regular rotation of the earth. It shows that the circadian rhythm is affected by periodic changes in the external environment (the intensity of light and the level of temperature). Influence and synchronization. For example, body temperature, pulse, blood pressure, oxygen consumption, and hormone secretion levels all have circadian rhythm changes. The structure of living things that resembles a clock is called the "biological clock." The periodic rhythm that approximates 24 ± 4 hours of day and night is called the "day clock", the approximate 29.53 ± 5 days is called the "month clock", and the approximate anniversary of 12 ± 2 months is called the "year clock". Chronobiology research has revealed that the life activities of plants, animals and even humans have a "lasting", "self-winding" and "self-regulated" biological clock.
The biological clock relies on periodic oscillations like a clock. Its working rhythm is not affected by the surrounding environment. Therefore, it is believed that its periodic oscillation rhythm is endogenous or proceeds independently in different organs. The existence of the biological clock is of extremely important biological significance. It can enable organisms to adapt to periodic environmental changes, especially those that are important for survival and reproduction, such as migration, foraging, mating, fertility, etc., and even make advance arrangements. . For example, glucocorticoids are already elevated before getting up in the morning to prepare for daytime activities. However, this kind of adaptability of organisms is also limited. The physiological cycle can only follow the periodicity of the outside world within a certain range. When the deviation is too large, changes in the external environment cause the stimulation to be too strong or too weak, causing physiological oscillations to become deviant. operation, thereby interfering with the normal operation of the clock, causing disorder of the internal rhythm and position of different organs of the individual, disrupting orderly cooperation, and causing certain diseases.
In the past 10 years, biological research has told us more and more clearly that circadian rhythm is formed under the control of the central nervous system. In 1972, researchers demonstrated that the suprachiasmatic nucleus in the anterior hypothalamus serves as the central pacemaker of circadian rhythm. It has been clinically observed in humans that brain tumors that damage areas including the suprachiasmatic nucleus can lead to disruption of the sleep-wake cycle. There are at least two circadian rhythm pacemakers in the primate brain, one of which is the suprachiasmatic nucleus, and the other has not yet been identified.
Why do students with average grades get admitted to prestigious universities, while top students fail? Why do young people who have always behaved civilly suddenly quarrel with others? It turns out that the human body has a cycle of intelligence, emotion, and physical strength of 33 days each. , 28-day and 23-day biological clocks. These three "clocks" have obvious ups and downs, and have high tides, low tides and critical periods in their respective operations. For example, when the three rhythms of the human body are running at a climax, they are full of energy, quick in thinking, optimistic in mood, and have strong memory and understanding. This time is a good time to study, work, and exercise. Children born during pregnancy at this time must be smart and eugenic. During this period, increasing the amount of study and exercise will often get twice the result with half the effort. Students are more likely to get good grades in exams when their rhythm is at a peak, writers are more likely to show "inspiration", and athletes are more likely to break records during this period.
On the contrary, when the three-rhythm is running in the critical or low ebb period, it will show reduced endurance, depression, slow reaction, forgetfulness and distraction. At this time, it is easy to have car accidents and medical accidents, and it is also difficult to achieve good results in exams. The elderly often fall ill during the low ebb of the emotional clock, and the death time of many diseases coincides with the double critical day and triple critical day of the three rhythms of intelligence, physical strength, and emotion. By understanding the critical days and low tide periods of your own three rhythms, you can prepare yourself mentally in advance, overcome difficulties with a strong will and a high sense of responsibility, and survive the critical days and low tide periods safely.
How to calculate the highs, lows and critical periods of your intellectual, emotional and physical clocks? The following is a simple algorithm:
(1) First calculate the "total number of days". The total number of days from the date of birth to the calculated date. Formula: t=(365.25×number of years)± x. In the formula, "t" represents the total number of days, and "x" represents the number of days except the number of years old. For example, someone was born on October 15, 1935. To calculate the biological rhythm of January 29, 1987, t=(365.25×52)-259=18734 (days).
(2) Calculate the "remainder" again, divide the total number of days calculated previously by 33, 28, and 23 (these are the days of the intellectual, emotional, and physical rhythm cycles respectively.) Then get the remainder. Note that calculations must be done by hand rather than using a computer.
18734/33=567...23 (remainder of the intelligence clock) 18734/28=669...2 (remainder of the emotional clock) 18734/23=814...12 (remainder of the physical clock)
(3) When After calculating the remainder, if you only need to know which period the calculation day is in (high tide period, low tide period, critical period), the easiest way is to use the "number of days in the period divided by 2 comparison method", also called the half-period method: 33 /2=16.5…(the half-cycle number of the intellectual clock) 28/2=14.0…(the half-cycle number of the emotional clock) 23/2=11.5…(the half-cycle number of the physical clock) Compare the “remainder” with the half-cycle number By comparison, if the remainder is less than the half-cycle number of this biological clock, the biological clock is running in the high-tide period; if it is greater than the half-cycle number, it is running in the low-tide period; if it is close to the half-cycle number or the full period, and the remainder is zero, it is the critical period. . Understand the operating cycle of your own three rhythms of "intelligence, emotion, and physical strength", so that you can maximize your advantages during the high tide period, and make early preparations during the critical and low tide periods to prevent unexpected events.
In the above example, the remainder of the intelligence clock: 23>16.5 is the low period; the remainder of the emotional clock: 2<14.0 is the climax period; the remainder of the physical clock is 12>11.5, and the number is close to the half cycle, which is the critical period.
The three-rhythm cycle theory of the human biological clock refers to a person's fluctuations on his own "horizontal line". When the three rhythms of the human body are in a critical period or a low ebb period, people will indeed feel reduced intelligence, emotional uneasiness, and physical fatigue, but they are rational and responsible. We understand our own critical periods and low periods, and there is no need to be afraid of them, let alone use the low periods or critical periods of the biological clock as an excuse. In order to reduce the accident rate, the driver on double and triple critical days should be replaced to do other tasks, or he should be reminded to drive carefully and use a high sense of responsibility to overcome the discomfort on critical days. Of course, drivers in the climax period are careless and think that accidents will not happen if they drive haphazardly. This is absolutely wrong.
The aging mechanism of the biological clock includes at least the following aspects:
(1) The amplitude of biological rhythm decreases. Decreased functions of various tissues and organs. For example, atrophy of nervous tissue leads to slowed nerve conduction speed, weakened digestion and absorption function, and decreased liver detoxification function; myocardial atrophy and decreased cardiac function. For example, in the elderly, the circadian rhythm amplitude of aldosterone, testosterone, and luteinizing hormone is obvious. decrease or disappear. When the biological clock is in the high tide period, it can offset these functional declines, but when it is in the low tide or critical stage, there is a risk of disease and death.
(2) Biological rhythm homeostasis is seriously damaged. The body temperature and blood pressure of night shift workers are higher at night than during the day, and sleep is reversed between day and night. Over time, the biological rhythm is damaged to a certain extent.
(3) The weakening of synchronization factors (lifestyle habits, regular meals during light cycles). Due to retirement, long-term living habits are not adapted to changes, and the time spent outdoors is reduced, which interferes with emotional rhythms. The aging of the body is related to the weakening of synchronization factors.
Man and nature are a unified whole. Only by complying with its changes and making adaptive adjustments in a timely manner can people stay healthy. The laws of climate change in the four seasons of heaven and earth include spring temperature, summer heat, autumn coolness, winter cold, and the great scriptures of spring growth, summer growth, autumn harvest, and winter storage. The secret of longevity for wise people is to adapt to the rising and falling changes of yin and yang according to the natural movement patterns of heaven, earth, sun, moon, and stars, and adopt the health-preserving method of "nourishing yang in spring and summer, and yin in autumn and winter" to achieve a long and healthy life. The long-lived elderly people in the past dynasties all had a regular daily life and diet. Although some things in real life are often unsatisfactory, long-lived people maintain an optimistic mood, correctly treat and handle conflicts, and constantly maintain a dynamic balance of synchronous factors in the rhythm of life, which has an immeasurable rejuvenating effect on delaying aging