When sleeping, the body should follow the direction of the magnetic field lines as far as possible, and the bed at home should run north and south, which is conducive to sleep and health. Is to make the body parallel to the direction of the magnetic field lines, which is good for health. The direction of the earth's magnetic field lines is the direction of the north-south meridian.

Long-term human movement along the geomagnetic north-south direction can make human organ cells orderly, produce biological magnetization effect, enhance bioelectricity, adjust and improve organ function, and thus play a good role.

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The earth's magnetic field consists of three parts: basic magnetic field, external magnetic field and magnetic anomaly.

The basic magnetic field is also called the normal magnetic field. It accounts for more than 99% of the earth's magnetic field. The basic magnetic field is mainly formed by the current convection in the iron core. This is an endogenous magnetic field.

Exogenous magnetic field is a variety of short-term magnetic changes originating from outside the earth and superimposed on the basic magnetic field. Mainly include: magnetic field changes consistent with sunspot activity cycle; The diurnal variation is related to the influence of solar radiation on the upper ionosphere; Magnetic storm.

Magnetic anomaly is a secondary magnetic field formed in the surrounding space and superimposed on the geomagnetic field after underground rocks, minerals or geological structures are magnetized by the geomagnetic field.

The information comes from the webpage link of Baidu Library, "Which direction does the head sleep healthiest?"

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