What harm does a hard pillow have to the body?

An excellent pillow will reduce the contact area with the head, increase the pressure, and the scalp will feel uncomfortable, while the pillow is too soft to maintain a certain height, which will lead to excessive fatigue of the neck muscles, affect the smooth breathing, and is not conducive to sleep.

Only when the pillow is soft and does not lose a certain hardness can the pressure between the pillow and the scalp be reduced, the uneven pressure be maintained, and the blood can circulate through the place with less pressure.

The main function of the pillow is to maintain the normal physiological curve of the human cervical spine and ensure that the physiological curvature of the cervical spine remains unchanged during sleep, so the height, length and hardness of the pillow are closely related to the health of the cervical spine. Hard pillows are suitable for people who are used to lying on their backs, and the height of pillows is 5~ 10 cm. People who are used to lying on their side are suitable to use a pillow with medium hardness, and the height of the pillow should be 10~ 15 cm.

In addition, people's head shape is also related to the initial use of pillows. Neonatal pillows are moderate in hardness. Pay attention to adjusting the head angle from time to time to avoid bad shape when you grow up.

Extended data

For normal people, sleeping with a high pillow for a long time is equivalent to sleeping with your head down, which will straighten the physiological curvature of the cervical spine and make it easy to get cervical spondylosis, while sleeping with a low pillow is in line with the normal physiological curvature of the cervical spine. However, it should be noted that this is for healthy people without cervical spondylosis or young people with mild cervical spondylosis.

Cervical spondylosis in middle-aged and elderly people is often accompanied by cervical hyperosteogeny and intervertebral space stenosis, in addition to the straightening of physiological curvature. This kind of person's cervical spine straightening is formed for many years, and its reversibility is poor, so it is not suitable for sleeping on a low pillow. This kind of person sleeps on a low pillow or a healthy pillow, which is equivalent to artificially causing his head to lean back. Many patients with cervical spondylosis are most afraid of leaning back, because leaning back will cause neck pain and numbness in their hands, but bending their heads will not hurt.

For people who sleep mainly on their side, the height of the pillow is the height from the shoulder to the head, that is, the neck can remain neutral when sleeping, which should generally be higher than that of people who lie on their backs. As for the hardness of pillows, moderate hardness is the best, and pillows that are too soft and hard are not suitable.

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