As the saying goes, "Spring is sleepy, autumn is short, summer is sleepy, winter is sleepless in March", and the wonderful feeling brought by a good sleep is irreplaceable by any other feeling. However, modern people often have poor sleep for a long time. It's hard to fall asleep after tossing and turning every day, and you will feel very tired when you wake up in the morning. This may be a problem with the placement of the bed.
The earth is a big magnetic field, in which human beings and all life live. People should sleep in the direction as parallel as possible to the magnetic lines of the earth's magnetic field, so as to feel comfortable. China is in the northern hemisphere, and the direction of the earth's magnetic field lines is from south to north, so our best sleeping direction should also be that our head faces north and our feet face south. In this way, the direction of cell current in the human body is just parallel to the direction of the earth's magnetic field lines, biological macromolecules in the human body can be arranged directionally, qi and blood can run smoothly, and slow waves and fast waves in sleep can be coordinated, thus contributing to good sleep quality and making people feel very comfortable.
If you always keep the east-west direction when sleeping, and the bioelectric current channel is perpendicular to the earth's magnetic field lines, then the magnetic force of the earth's magnetic field will become a strong resistance to the bioelectric current of the human body, and the normal operation of the human body will consume a lot of heat energy, which may lead to an increase in body temperature, abnormal operation of qi and blood, and usually lead to dizziness, irritability, insomnia, cervical pain and other symptoms. Therefore, if you want to have a good sleep, you'd better head north and feet south.
In addition to the direction of sleep, what kind of sleeping position is helpful to sleep is also a problem that people have been discussing. In fact, people can't just keep one posture while sleeping. The key is to feel comfortable. Some people like to lie on the right, some people are used to lying on the left, and some people are used to lying on their backs. This is a matter of personal habits, but it is also related to different physical conditions. For example, a person with heart disease will naturally take the right sleeping position, because pressing the left heart will cause discomfort.
The same is true of sleep time. We usually say that we should sleep for 8 hours every day, but it actually varies from person to person. Some people are busy at work, and may have slept 10 hours, but they still feel tired. Some people are very relaxed every day, and they may wake up naturally after sleeping for 6 hours. These are all normal.
The body is your own. Whether it is diet, sleep or other aspects, feeling comfortable means being suitable for you, which is beneficial to your health.
The importance of sleep
Everyone should have a good sleep after a busy day. Sleeping is a kind of physiology.
sleep
Reaction is a part of brain nerve activity, and it is the result of inhibition of neurons in cerebral cortex after continuous excitement. When inhibition is dominant in the cerebral cortex, people will sleep. In life, people have work and rest, and in neural activities, people have excitement and inhibition. Inhibition is to protect nerve cells, make them excited again and let people continue to work. Children must sleep 1 1 hour, pupils1hour, junior high school students 8 hours and senior high school students 7 hours.
Sleep is also a process of memory cell metabolism. Aging cells input the arrangement of each memory information into new cells for storage.
Including sports, language areas, balance keys, some past events and memories in daily life.
They are all material, so they also exist in a material way. If a person's long-term lack of sleep leads to the inability of memory cells to live healthily, it is easy to make mistakes, such as aphasia, spasm, convulsion, or shock and fainting caused by forced sleep. It is easy to get cancer after a long time.
Therefore, purely from the perspective of natural science, it is best to wake up naturally, otherwise you will lose your life. A regular life is a good foundation, but long-term fatigue for the sake of "regularity" is dangerous. Scientists suggest that people with financial ability had better let nature take its course and don't damage their health just to flaunt morality.
In the final analysis, "going to bed early and getting up early is good for your health" is related to the relations of production, because farmers will have no food if they don't get up early to work, herd cattle and farm land, and they will have no food for a long time. How can their health be good? Therefore, if you are not a farmer or want to make a living, there is absolutely no need to torture and abuse yourself.
Yawning is the first signal to remind us of lack of sleep. If 18 hours don't fall asleep, people's reaction time will change from 0.25 seconds to 0.5 seconds, and continue to grow. Ordinary people will begin to have paroxysmal drowsiness, which lasts for about 2 to 20 seconds anywhere, and then they will find it necessary to reread what they have just read. Eyelids are getting heavier and heavier, and they start to nap in 20 hours. According to research, the reaction speed of normal people at this time is basically the same as that of people with a blood alcohol content of 0.08-if you keep driving at this value, you will be easily detained. You will also forget many things, such as double-checking the spelling of your name, or setting the brakes when parking on a hillside.
In the animal kingdom, sleep is as important as food, water and sex. Everyone from fruit flies to modern people is like this. But scientists can't know exactly what sleep does. Is it to refresh yourself? Not exactly. As we all know, muscles don't need sleep, they just need intermittent relaxation. Is it to keep a clear head? Close. A good sleep is good for the brain. However, scholars have not yet reached an agreement on how the brain benefits from sleep.
One theory is that sleep helps the brain to store all the information that humans receive when they are awake. Another view is that sleep is to restore energy. It has also been suggested that sleep often uses some mysterious forms to help us master various skills. What is sleep?
Two things happened in the mid-1990s, which brought the focus of research back to the real purpose of sleep. 1994, scientists from Weizmann Academy of Sciences in Israel suggested that scholars' research should focus on the problem of false memory processing, and the technology of peeping into the sleeping brain was greatly improved at that time.
Scientists at Weizmann Academy of Sciences have found that the duration of people's rapid eye movement sleep is directly related to their ability to recognize fixed patterns on computer screens. This technique is called program memory, which requires repeated operation and practice. Memorizing facts, such as the name of the president of the United States, is declarative memory-an ability that has nothing to do with REM sleep. Robert, a neuroscientist at Harvard Medical School, said. Stickgold said: "Our understanding of memory is always naive."
Sleep quietly
But for a while, scientists suddenly made clear the direction of memory research. In the past few years, Stickgold and his colleague Matthew Walker have studied the effects of sleep on procedural memory of motor skills at Beth Center in Boston, USA. They asked right-handed trainees to type a string of numbers as quickly as possible with their left hands over and over again. They found that no matter what time of the day the experiment is conducted, the accuracy of the trainees will increase by 60%-70% after 6 minutes, but if the trainees take the experiment in the morning and re-test it after 12 hours, their accuracy will not be greatly improved. However, when students train at night and take the test after getting up, the speed will increase by 15%-20% and the accuracy will increase by 30%-40%.
To the surprise of experts, those trainees who made the greatest progress spent the most time on non-rapid eye movement sleep. Other training about vision or perception requires trainees to have deep sleep or both slow-wave sleep and rapid eye movement sleep. Sometimes, even closing your eyes for an hour can make a big difference. At other times, a good sleep is very necessary.