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We know that the earth is a huge magnetic field, and the magnetic line of induction starts from the north pole and enters the south pole. Therefore, when people fall asleep, they can adopt a posture with their heads facing south and their feet facing north. This is because the magnetic lines of the earth’s magnetic field pass through the human body smoothly, which minimizes the interference of the human body and helps improve the quality of sleep.

Regarding sleep orientation, in ancient times, the idea of ​​"westward in autumn and winter" has been mentioned. For example, in "A Thousand Talents: Daolin Nurturing Nature", it said: "A mortal lies, spring and summer to the east, autumn and winter to the west", quoted in "Lao Lao Heng Yan" "Remember Yuzao": "When you lie down, you should head east in spring and summer, and head west in autumn and winter." It's all because spring and summer belong to the sun, so the head should be facing east; in autumn and winter, the head should be facing west, so as to conform to the principle of "nourishing Yang in spring and summer, and nourishing yin in autumn and winter".

Experts pointed out that the orientation of sleeping affects people's sleep. If you want to have a better sleep quality, you can also put some flowers in the bedroom, which can improve the air in the bedroom and improve the quality of sleep.