There is a window on the bedside, which is called helplessness. Because there are windows at the bedside, people's psychology is easy to be uneasy. The invisible center ignores when something will run out of the window under pressure, so they can't sleep well. In addition, from a scientific point of view, the bedside is a window, the temperature often fluctuates too much, and the sound insulation effect is not good. Do you think if it snows, rains, or there is a road outside the window, it will easily affect sleep? So it has an impact on health, so it is not recommended.
The foot of the bed is a window, which is similar to the window of the bedside from a scientific point of view. In feng shui, it is called private parts exposure, which is easy to make rotten peaches or attract butterflies. Do you think that when sleeping with your feet to the window, if someone passes by the window, you can directly see the private parts, which is easy to lead to crime? Many can still be inferred from a scientific point of view.