Not resting on pillows is bad for your health. Choosing pillows designed in accordance with human mechanics is not only good for the cervical spine, but also for the physiological bending of the entire spine and the paraspine muscles. All diseases originate from the spine, and the spine is always healthy in order to maintain good health. The function of the pillow is to ensure that the physiological curvature of the human neck is not deformed during sleep. According to experts, the cervical spine is located at the uppermost part of the human spine, wrapped in the neck, and composed of 7 vertebrae. The so-called physiological arc is a smooth, forward-facing arc formed by these 7 vertebrae. The function of the pillow is to maintain this normal physiological curve. How to maintain a normal physiological arc depends on whether you are really clear about the choice of pillow height and softness. Improper selection of pillows directly affects people’s sleep. So what kind of pillow is suitable? The old saying “sit back and relax” is actually not scientific. If the pillow is too high, no matter what the sleeping position is, the normal lordotic curvature of the cervical spine cannot be maintained, which will increase the burden on the cervical spine and may cause stiff neck. If you have neck pain, headache, dizziness, tinnitus, insomnia and other neurasthenia, or you feel numbness in your hands and feet halfway through sleep, it may be that your pillow is too high; too low a pillow can make your head congested , It is easy to cause swelling of the eyelids and face, and the lower jaw will be lifted up as a result, it is easy to open mouth to breathe, and snoring occurs. If the neck and shoulders are sore after waking up, it is caused by the pillow being too low, not using the pillow, or the pillow being too soft. Experts point out that it is best to choose a pillow that can maintain the normal physiologic curvature of the neck regardless of whether you sleep on your back or on your side. Adults should have a pillow height of 15-20 cm when lying on their back and about 20-15 cm when sleeping on their side. Since everyone has a different cervical spine, it may be our best choice to customize different health pillows. It takes some time to choose a pillow that suits you. A good pillow adds a peace of mind.