Traditional residential buildings, pay attention to sitting north to south; Indoor beds are usually placed in the east-west direction. Experts believe that sleeping with your head facing south or north and south is good for your health. Because the earth is a big magnetic field, the magnetic lines run through the north and south.
The water molecules in the human body are like a small compass, constantly swinging under the action of the earth's magnetic field lines. When the poles of water molecules are in the same direction as the magnetic field lines between the north and south of the earth, the water molecules stop swinging and tend to be stable; When the polarity orientation of water molecules is different from the magnetic field lines between the north and south of the earth, water molecules will be unstable.
meaning
The earth itself has a geomagnetic field, and its direction is north-south (South Pole and North Pole). Magnetic field has the property of attracting iron, cobalt and nickel, and the human body contains these three elements, especially a large amount of iron. Choosing the direction of head, north foot and south foot to sleep can conform to the magnetic field lines, let the magnetic field lines pass through the human body smoothly, minimize the interference of geomagnetic field to the human body, and make sleep more sweet.