1, the direction of the bed is preferably north-south, which accords with geomagnetic attraction. Sleeping with your head facing south or north is good for your health. In the human blood circulation system, the direction of aorta and vein is consistent with the direction of human head and feet. When people sleep in the north-south direction, the direction of aorta and vein, the direction of human sleep and the direction of magnetic field lines in the north and south of the earth are the same, so it is easy to fall asleep, and the sleep quality is the highest. Moreover, sleeping in the north-south direction also has certain disease prevention and health care functions.
2, the bedside should not face west, explained by modern science, because the earth rotates from west to east. If the head falls asleep in the west or east, the blood tends to go straight to the top of the head, so the sleep will be unstable and the quality of sleep will be poor. People will become very listless in the long run.