A pillow that many people are using is the rectangular flat pillow. Although this pillow has a long history and looks practical and generous, it does not meet the physiological requirements of the human body. Long term use will destroy the physiological curvature of the human cervical spine, resulting in the neck muscles and ligaments being in a state of stress for a long time, so that the neck can not be fully rested and suffers from strain.
I usually have this feeling: when I wake up, I suddenly find that my neck is too stiff to move, my whole body is aching, and my back is aching. I didn’t sleep all night. Why did I get tired? If you have similar experience, then you need to carefully check whether your pillow conforms to the physiological radian of the human neck.
Problem on the pillow: the cervical vertebra is located at the top of the human spine, wrapped in the neck and composed of seven vertebrae. The so-called physiological curve is a smooth, forward facing arc formed by these seven vertebrae. The function of the pillow is to maintain this normal physiological curve.
How to maintain a normal physiological radian depends on whether you are really clear in choosing the height, soft and hard size of the pillow.
Pillow height: This is also different from person to person. Although there is a saying in the ancient saying that “rest easy”, it is not that the higher the pillow, the better. Because the pillow is too high, no matter what posture you sleep in, it will affect your sleep. You can’t maintain the normal lordosis of your cervical vertebra, but it will move backward, which will increase the burden of your cervical vertebra and may lead to pillow falling.
Similarly, too low a pillow is not good, because too low a pillow will make the head congested, easily cause eyelids and facial edema, and the lower jaw will lift up, easy to breathe, and snore. Generally speaking, our sleep posture is divided into three types: supine, lateral and prone.
It is best to choose a pillow that can maintain the normal physiological radian of the neck no matter whether you sleep on your back or on your side. For adults, the pillow height should be 15-20cm when lying on the back and about 20-15cm when sleeping on the side.
Hardness of pillow: This is also suitable for moderate. Because a strong pillow will reduce the contact area with the head and increase the pressure, the scalp will feel uncomfortable; Conversely, the pillow is too soft to maintain a certain height, which will lead to excessive fatigue of neck muscles and affect the smooth breathing, which is not conducive to sleep.
Only if it is slightly soft and does not lose a certain degree of hardness, can the pressure between the pillow and the scalp be reduced and the uneven pressure be maintained, so that the blood circulation can pass through the place with less pressure and maintain a certain height.
Pillow width: under normal circumstances, it’s better to be wider than your shoulders. Don’t sleep on a pillow that is too small, because when you turn over, the pillow can’t support your neck. In addition, a pillow that is too small will affect your sense of security when sleeping.
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