Does the head of the bed face west? What are the disadvantages?

If the head of the bed faces west, people will lie in the opposite direction of the earth's rotation when they sleep, just like sitting in the opposite direction of the train when they take the train will feel tired. Lying in the opposite direction to the rotation direction will also affect the quality of sleep, and the good effect on rest and physical strength will also be weakened. Although Chengdu is small, it will have different degrees of influence on the human body for many years. From a scientific point of view, the earth turns from west to east. If the head of the bed faces west, it will lead to blood rushing straight to the top of the head, which will also affect the quality of sleep and cause health problems. Therefore, it is best for the bedside to face north and south.