Scientific statement: The most common theory is that the human body should have its head facing north and feet facing south during sleep, consistent with the direction of the earth's magnetic field lines. Because, if possible, here are some good ones. The direction of human sleep is perpendicular to the direction of the earth's magnetic field lines, and the earth's magnetic field will affect the human body's biocurrent. In order for the human body to reach a new equilibrium state, it must consume a large amount of heat energy to improve its metabolic capacity, and sleep will naturally be disturbed. But several experts I consulted had a completely different view. The body should be parallel to the latitude lines Why do we feel tired? This is largely due to hypoxia caused by insufficient blood supply to the head. Why is it easier to regain strength while lying down than sitting or standing? On the surface, it seems that the trunk and limbs are relaxed, but more importantly, lying flat makes blood circulation more convenient to the brain. Scientists have conducted tests and found that standing in a short period of time can restore energy faster than lying down, although the body is still exerting force during the inversion process. Therefore, your head should face west when sleeping. Because we know that the earth rotates from west to east, turning your head to the west is equivalent to borrowing the force of the earth's rotation, making it easier for blood to gather toward the head. It is best to have your head to the northwest. The direction of sleeping is very important. Traditional Chinese medicine teaches that the human body should "establish the pulse" and "establish the Qi" during sleep. This "standing" actually means to make the direction of the Qi meridians in the body consistent with the natural Qi meridians, so that the blood vessels will be smooth. We know that the terrain of our country is high in the west and low in the east. Following the mountains and water, the direction of the air flow is from northwest to southeast. Therefore, I recommend that people sleep with their heads facing the northwest and their feet facing the southeast. This will make the human body's Qi consistent with nature. The next best direction is to face your head to the west and your feet to the east, or to face your head to the north and your feet to the south.
Feng Shui theory: If you want to know, I can tell you that it is related to Feng Shui. Up north, down south, left west, right east. The red bird is on the top and the basalt is on the bottom. On the left is a green dragon and a white tiger. On the left, the blue dragon is soaring in the sky. On the right, the white tiger is frightening to the ground. A person's head ascends, which is the convergence of all Yangs, and a person's feet, which descend, is the knot of Yin. A person's sleep direction is related to the changes in the qi of the heaven, earth, sun, moon and stars. Feng shui masters believe that the Yang Qi of heaven and earth rises from the east, so facing the east complies with the changes in the natural Qi movement. If you don’t specialize in Feng Shui but believe in Feng Shui, when sleeping, remember to sleep facing south or north, with your head in the east or west.
Actually, you can sleep however you want. You can do whatever you feel comfortable with. We live in dormitories, so we can sleep wherever other people’s beds are arranged