Why do old people often say that it is unlucky to lie with your feet to the door?

Old people often say that it is unlucky to lie with your feet facing the door. It may be because when you sleep with your feet facing the door, your feet will touch the door, which is the only place to go in and out of the room, so you may bring bacteria from your feet into the room and affect the health of others.

In addition, sleeping with feet facing the door may also affect the quality of sleep, because feet facing the door will lead to cold feet, causing foot discomfort and affecting the quality of sleep.

Therefore, it is recommended to avoid pointing your feet at the door when sleeping, so as not to cause adverse effects on your body.