Most people can’t sleep without a pillow. How can a "pillow" be worry-free?

　　The ancients said that "the pillow is worry-free", but modern medicine believes that the pillow is too high or If it is too low, it will not be good for the cervical spine. There will be problems with the wrong position. It may be sore in the short term and uncomfortable in the short term. There are many people who are not used to pillows, and their heads will lean back when they sleep. The pressure on the cervical spine is twice as high as when they are leaning forward. In the long run, there will be problems.

　　Read the following Explain, you understand why hotels usually put 4 pillows:

　　 (1) It is very important to put the pillows correctly during sleep. The pillows must be placed on the neck. You can test yourself. When you lie down, if the chin is at the lowest point, it means the pillow is too low. If the chin is pressed down, that is, the pillow is too high, the chin should be kept level. This is the correct and correct pillow height.

　　 (2) Sleep accounts for a third of life, and posture must not be careless. Like some parents think that let the child sleep on the hard bed, the bones will grow right. In fact, the flesh of the human hips, waist, and shoulders is somewhat different. The rigid bed will prevent the curve of the body from sticking to the bed surface, making it impossible to relax, uncomfortable and unhealthy.

　　 (3) There are many people who are not used to pad pillows. When they sleep, they will tilt their heads back. The pressure on the cervical spine is twice as high as when they lean forwards. In the long run, there will be problems. As for the height of the pillows, young people can be slightly lower, and higher when they are older, because the softness of the cervical spine will change with age, and the older and the more stiff, the more support is needed.

　　(4) When sleeping (upright position), the pillow should be just from the entire head to the neck, not the shoulders, and not only half of the back of the brain. It is best to place one under the knee A small pillow; double the height when sleeping on the side, and a small pillow between your knees; it is best to avoid lying on the bed, because the cervical spine will be under excessive pressure; remember to first posture when you get up, hold your hand up , Get out of bed, do not sit up straight up. No matter how correct the posture is, it is not appropriate to fix it for too long. After a long time, you must change it. You must turn over when you sleep. You must stand up and move for a long time before the spine can be maintained.