How to choose the hardness and position of the pillow?
Generally speaking, a harder pillow is good for human health. But a pillow that is too hard makes the contact surface of the head and the pillow too small. Cause local pressure to be too large, making people feel uncomfortable. And this is likely to cause excessive compression of local nerves. In the next morning, symptoms such as numbness or pain in the head, neck, back, arms, and hands will occur. A pillow that is too soft is difficult to maintain the height of the pillow. Because it is too soft, the scalp has a large compression area, which is not conducive to blood circulation. At the same time, there is also the problem of poor air permeability. Sufficient breathing during sleep cannot be guaranteed, and there may also be safety hazards.
The proper position of the head on the pillow during sleep is very important. Generally speaking, the head is best placed in the upper center of the pillow. Such a posture can stabilize sleep and avoid stiff neck caused by frequent changes of posture at night. The second is to allow the neck to have a certain bearing capacity and maintain a normal physiological curve of the body. The normal sleeping position is to lie on your back with your head in the middle of the pillow and your neck on the edge of the pillow. The pillow will support the neck and will not cause pressure on the cervical spine. If you are using a pillow material with no elasticity, you can squeeze the middle of the pillow. The neck is raised on the pillow so that the cervical spine does not bend forward or sideways.
