What is the geomantic saying that sleeping feet face west?

When I was a child, I lived in the countryside, and my grandmother often told me not to sleep with my feet facing west. Everyone in the countryside has this saying. Don't sleep with your feet facing west Obviously, when we sleep, we should keep our feet facing east and our heads facing west, otherwise it will affect our sleep. And what the old man said, is there any scientific reason or just superstition? In ancient society, there were many superstitions. For example, the west means bliss. There is a rule in many rural areas that once a person dies, he should put the body in the mourning hall, usually with his feet facing west and his head facing east.

Therefore, if you sleep in this position, you will feel unlucky at first, so many old people are also taboo about this sleeping method. In addition, from a scientific point of view, this statement also has some truth. Because of the magnetic field, many people sleep with their heads facing west and their feet facing east. However, if the feet are facing west, it obviously violates the magnetic field, so some friends will sleep uneasily when their feet are facing west, but this situation is relatively rare, and many friends' feelings about the magnetic field are actually not so obvious.

The rapid development of modern society is to tell everyone not to be superstitious in doing anything. From a scientific point of view, the direction of sleeping is not so particular, it is just superstition said by the old man, which has nothing to do with science. People's sleeping posture and posture, as long as they feel comfortable, there is no need to care too much about orientation.

What's more, most houses are built in the north-south direction, with several rooms. It is impossible for every room to be set in the direction of feet facing east, so there is no problem in this respect.