It doesn't matter which direction you sleep in, as long as you ensure the time and quality of sleep, you will feel energetic when you wake up the next day, fully meeting the needs of work and life during the day, which is good for your health.
There is a folk saying that it is best to sleep with your head facing north and your feet facing south, because this is consistent with the direction of the earth's magnetic field lines and is good for your health.
meaning
Experts believe that sleeping with head facing north and feet facing south is good for health, because the earth is a large magnetic field with magnetic lines running through the north and south, and the water molecules in the human body are constantly swinging under the action of the magnetic lines of the earth like small compasses. When the polar direction of water molecules is the same as the direction of the north-south magnetic field lines of the earth, water molecules stop swinging and tend to be stable, while when the polar direction of water molecules is different from the direction of the north-south magnetic field lines of the earth, water molecules are unstable. If the water molecules in the north-south direction sleep towards the human body, which is consistent with the magnetic field lines in the north-south direction of the earth, people are most likely to fall asleep and have the highest sleep quality.