sit back and relax? Have a good time!

When you mention a pillow, people often think of the idiom "high pillow and lying", "sit back and relax", thinking that sleep should be high. In fact, high pillows are not good for people, and suitable pillows help the body to relax, protect the neck and brain, and promote and improve sleep. Therefore, the following points should be noted when choosing a pillow:

(1) Height: Modern research suggests that the pillow should be slightly lower than the shoulder to the same neck. The height of the pillow is determined according to the weight curve of the seven cervical vertebrae of the human neck. Only by adapting to this physiological curvature can the muscles, ligaments and joints of the shoulder and neck be relaxed, and the pillows are too high and too low to be harmful. High pillows interfere with blood circulation in the head, which is easy to cause cerebral ischemia, snoring and stiff neck. It is not like “high sleep and worry” as people often say; low pillow makes the head congested, which may cause eyelids and facial edema, especially when suffering from high blood pressure. For heart disease, choose a suitable pillow.

(2) Length and width: The pillow should be slightly longer, and the length of the pillow should be enough to sleep and turn behind one. Pillows are not too wide, too wide and more than the head and neck joints, muscles are easy to tension, 15 ~ 20cm is appropriate.

(3) Softness: The pillow has moderate hardness and a slight elasticity. The pillow is too hard, the relative pressure between the head and neck and the pillow increases, causing head discomfort; if the pillow is too soft, it is difficult to maintain the normal height, so that the head and neck can not get support and fatigue; the pillow is too elastic, the head is constantly Subject to external elastic forces, it is prone to muscle fatigue and damage. Therefore, in general, the pillow core is mostly made of rice husk, buckwheat husk, kapok, feather flakes, scattered foam rubber, etc. It is soft and hard, and has a slight elasticity, which is beneficial to sleep and health.

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