How to illustrate four pillows in a hotel?

It is important to put a pillow correctly when sleeping. The ancients said "sit back and relax", but modern medicine thinks that the pillow is too high or too low, which is not good for the cervical spine, and the wrong position of the pillow will also cause problems.

You can test it yourself: put the pillow around your neck. When lying flat, if the lowest part of the chin is facing the sky, it means that the pillow is too low. If the chin is pressed down, the pillow is too high and the chin should be kept level, which is the comfortable and correct pillow height.

After reading the picture below and the explanation, you will understand why hotels usually put four pillows:

Sleep accounts for one-third of life, and posture should not be sloppy. For example, some parents think that letting their children sleep on a hard bed will make their bones grow straight. In fact, the meat of human buttocks, waist and shoulders is somewhat different. A hard bed will make the body curve not stick to the bed surface, making it uncomfortable and unhealthy.

There are still many people who are used to not using pillows. When they sleep, their heads will lean back, and the pressure on their cervical vertebrae will be twice that when they lean forward. In the long run, something will definitely go wrong. As for the height of the pillow, young people can be slightly lower, and older people should be slightly higher, because the softness of the cervical spine will change with age, and the older they are, the more rigid they need.

When sleeping on your back (supine posture), the pillow should be just padded to the whole head to the neck, not to the shoulders, and not only to the half of the back of the head. It is best to put a small pillow under your knees; When sleeping on your side, double your height and put a small pillow between your knees. It is best to avoid sleeping, because the cervical spine will bear too much pressure; Remember to stand on your side when you get up, raise your hands, and then get out of bed. Don't just sit up straight on your back. No matter how correct the posture, it should not be fixed for too long. You must change it for a long time, turn over when you sleep, stand up and exercise for a long time, and maintain your spine.