Next, the relevant knowledge about "how to scientifically prevent diseases by improving the nutritional structure of daily diet" will be continuously updated.

The author is a special guest of Beijing Satellite TV, a medical professor at Sun Yat-sen University and a national nutritionist, Professor Wu.

Inside the human body, like a clock, it is constantly moving, constantly adjusting, repairing and perfecting. The human body has a time rhythm, which is the so-called "biological clock" rhythm.

With a 24-hour cycle, the function of the human body shows the following changes:

1 am: Most people have slept for several hours, passed through all stages of sleep and entered a shallow sleep stage that is easy to wake up. At this time, people are particularly sensitive to pain.

2 o'clock: except for the liver, most organs of the body work very slowly. During this quiet time, the liver is stepping up the discharge of toxic and harmful substances after metabolism, which seems to be like a cleaner doing a comprehensive cleaning at night.

3 o'clock: the whole body is at rest, and the bones, muscles and joints are completely relaxed. At this time, people's blood pressure is very low, and the frequency of pulse and breathing is also very low.

4 o'clock: blood pressure is in a low state, and there is little blood supply to the brain. There are many patients and many people in poor health, and it is easy to die during this period. The healthy people in this period have very sensitive hearing, and they will wake up with a slight noise. If you get up in a hurry at this time, it will cause dizziness.

5 o'clock: the kidneys stop secreting. At this time, people have gone through two stages: shallow sleep and deep sleep. If they get up at this time, they will soon be full of energy.

6 o'clock: blood pressure rises and heart rate increases.

7 o'clock: The human immune system is particularly powerful. At this time, in case of virus or pathogen invasion, it is most promising to be resisted. The temperature regulation of the body is in a low state.

8 o'clock: all toxic and harmful substances in the liver are removed, and the liver is at rest. It is forbidden to drink alcohol, otherwise it will bring a great burden to the liver.

At 9 o'clock, the mental activity ability is high, but the body's response to pain is reduced, and the heart can work at full capacity.

10 hour: full of energy. This moment is the best state of the human body in a day, and it is also the best working time in a day. If you do fitness exercises at this time, it is easier to get results.

1 1: The heart is still working hard, and the human body will not feel tired easily.

12: It's best to mobilize all your body and lose weight immediately. If you want to do that, you'd better not have lunch right away, but postpone it for half an hour or an hour.

13: The liver is at rest, some glycogen enters the blood, and the blood sugar level rises slightly. The best working time for the first half of the day is coming to an end. I feel a little tired and need to adjust my rest.

14 hour: This is the second lowest point of human emotions and physical strength within 24 hours, and it is slow to respond. It's best to take a nap to "recharge".

15: When human organs are most sensitive, especially the sense of smell and taste. Physical labor ability gradually recovered.

16 hours: the sugar in the blood rises temporarily, but it will not cause disease. Due to intense work and study, blood sugar content will drop quickly.

17 hours: high efficiency and initiative. For bodybuilders, the amount of training can be appropriately increased.

18: The pain was relieved again, and the nerve activity decreased.

19 hours: blood pressure rises and mood is unstable. Any little thing will cause an argument.

20 o'clock: When the weight reaches the maximum in a day, the human body reacts very quickly. Drivers rarely have car accidents at this time.

2 1: People's memory is at its best all day, and their interest in reading and writing is high at this time.

At 2200 hours, the number of white blood cells per cubic meter of blood increased from 5000 to 8000, and sometimes even as high as 1.2000, and immune "cleaning" was carried out; Body temperature drops.

At 23: 00, the human body enters a state of rest for a day of recovery and adjustment.

24: 00: In the last hour of day and night, the activity ability of various organs and systems of the human body is weakened, and it is time to enter a sweet dream.

From the perspective of traditional Chinese medicine, the alternation of day and night in nature is closely related to the operation of human meridians and qi and blood.

Conditioning the body according to the laws of natural changes can make the health care effect get twice the result with half the effort.

At the same time, modern chronobiology proves that human life phenomena and physiological activities have relatively stable time rhythms, including seasons and circadian rhythms. Some people call it "biological clock", which reflects the close relationship between man and nature.

As Professor Wu said, health is the wealth to create wealth. Without health, there is nothing!

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