What does it matter if the pillow is too high or too low?

High pillow is not good for health, and low pillow also has health disadvantages. If the pillow is too low or there is no pillow, people will lean back too much when lying on their backs, which will easily lead to mouth breathing, and then dry mouth, sore throat, snoring and other phenomena. If you lie on your side without a pillow, one side of the neck muscles will also have spasms and pains due to excessive stretching and fatigue. The height of the pillow should keep the head and trunk level when lying on your back, that is, the pillow is one punch high when lying on your back and one punch and a half high when lying on your side. Generally speaking, the height of the pillow is 10- 15 cm, and the specific size depends on the physiological radian of each person. The normal pillow height is generally 10- 15 cm, and the pillow is slightly higher for people with wide shoulders, fat body and long neck.