2. It is best to choose the north-south orientation of the bed, corresponding to the gravity of the earth's magnetic field. Sleeping with your head facing south or north is good for your health, because it is in your blood circulation system. Aorta and great veins are the most important, and their directions are consistent with the head and feet of the human body. When the human body sleeps in the north-south direction, the aorta and the great vein are opposite, and the direction of the magnetic field lines in the north and south of the earth is the same. At this time, people should not face west, because the earth rotates from west to east. If the head faces west, the blood tends to go straight to the top of the head, and sleep is unstable: sleeping with the head facing east will have a sense of peace.
3, the bedside should not be empty, the bedside should be against the wall, not by the window. If the bed is not against the wall, there must be a headboard at the bedside. It won't make people stupid, and there can't be a toilet or kitchen behind the bed.