Which direction does the head of the bed face?

The head of the geomantic bed should face the north-south direction, which is in line 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.