Why can't you sleep with your head facing the door

When you sleep in bed, you must be aware of some precautions, such as keeping warm, making sure your bed is comfortable, etc. It is best not to sleep with your head facing the door. Although there is a certain element of feudal superstition in this, it also makes sense from a scientific point of view. For example, there will be wind through the gap in the door, which can easily lead to catching a cold or even facial neuritis.

Why can't you sleep with your head facing the door?

1. Wind may enter through the door gap, and the draft may make people cold; 2. The noise and voices on the side of the door may be louder, and the voices and footsteps of passers-by may easily disturb you; 3. Once someone comes in, you can see him as soon as you look up, and it is relatively easy to protect yourself for safety reasons; 4. People's habits.

Which direction is the healthiest to sleep in?

Scientific research shows that people should sleep with their head to the north and feet to the south. This is because the earth itself has a geomagnetic field, which is directed from north to south (divided into the South Pole and the North Pole). The magnetic field has the property of attracting iron, cobalt, and nickel. The human body contains these three elements, especially the blood contains a large amount of iron (in the hemoglobin of red blood cells). Choosing to sleep with your head to the north and your feet to the south can follow the geomagnetic field lines, allowing the magnetic field lines to pass smoothly through the human body, minimizing the interference of the earth's magnetic field on the human body and making sleep sweeter.

Traditional Chinese medicine also believes that people should sleep in a north-south direction with their heads to the north and their feet to the south. The explanation is that, with this sleeping orientation, the direction of blood circulation in the human body is consistent with the direction of the earth's magnetic field lines (that is, the biological molecules in the human body will change from a chaotic arrangement to a directional arrangement), which makes it easier for blood circulation, reduces the metabolic rate, reduces energy consumption, and when you wake up, you will naturally feel refreshed physically and mentally.

The sleeping position with head to the north and feet to the south implicitly requires us to place the bed in the bedroom towards the north and south, and try not to face the east and west. This is because placing the bed in an east-west direction will directly cause people to sleep in an east-west direction, which will easily change the distribution of blood in the human body, especially the blood distribution in the brain, thereby causing insomnia or nightmares and reducing sleep quality.

Many medical experts, both ancient and modern, believe that the best sleeping position is to lie on the right side with the body slightly bent, regardless of gender, age or status. This is mainly derived from human physiological structure. The human heart is located on the left side of the chest cavity, the openings of the gastrointestinal tract are all on the right side, and the liver is also located on the right side. If you lie on your right side, you can reduce the pressure on your heart. Less pressure on the heart is conducive to blood pumping, increasing blood supply to organs such as the stomach and liver. At the same time, when lying on your right side, the stomach contents can more easily flow into the duodenum and small intestine, which is beneficial to food digestion and absorption and the body's metabolism.

In addition, sleeping in this position can relax the muscles of the whole body during sleep, ensure smooth breathing, and minimize the physiological activities of the heart, lungs and gastrointestinal tract. Since the heart is not under pressure and the lungs can breathe freely, it can ensure the oxygen supply needed by the whole body during sleep, allowing the brain to get sufficient rest and improving sleep quality.

Other sleeping positions have disadvantages of one kind or another. When lying on your back, the root of the tongue falls back, which can easily cause breathing difficulties and snoring. After falling asleep, your hands can easily be placed on your chest to press on your heart, causing nightmares and making you feel "tired" when sleeping. When lying on your stomach, the chest and abdomen are under pressure, and the mouth and nose are easily covered by the pillow, which can easily cause a "stiff neck"; when lying on your left side, the apex of the heart is easily pressed, and the heart sounds can be heard when the ears are pressed against the pillow, affecting sleep. Over time, it can also lead to neurasthenia and cardiovascular diseases.

For most healthy people, there is no need to worry too much about their sleeping posture. This is because the human body turns over and over many times during a night's sleep, and it is impossible for a person to maintain the same sleeping position until dawn. Our body is very smart. In order to relieve fatigue and restore physical strength, it will always make people unconsciously change their sleeping position during sleep.

For people suffering from certain diseases, it is necessary to pay attention to their sleeping posture and not mechanically force themselves to sleep on the right side. Adopting some protective sleeping positions on your own can be helpful in preventing the occurrence of diseases or alleviating the symptoms of diseases. You should know that many diseases are caused or aggravated by improper sleeping posture.