At least one-third of a person's life is spent in sleep. Infants and young children who stay in bed for a longer period of time are relatively longer.
The shape, size, height, hardness and sleep posture of the pillow during this long period of time will have a great impact on human health.
Destroy cervical curvature
The average person's pillow is too flat and does not meet the physiological requirements of the human body. Long-term use will destroy the physiological curvature of the human cervical vertebrae, causing it to straighten or bend in the opposite direction, thereby causing the neck muscles and ligaments to be in a stretched state for a long time, so that If you don't get enough rest and strain, you will develop a stiff neck or cervical spondylosis.
Simply put, a pillow that fits the physiological curvature of the human cervical vertebrae and is both soft and hard, comfortable and beautiful is most suitable. The cervical vertebra is located at the uppermost end of the human spine and is wrapped in the neck and consists of 7 vertebrae. In order to cushion and reduce the shock during walking and jumping, and to protect the brain, the seven vertebrae of the human cervical vertebrae are not only vertically stacked, but form a smooth, forward-facing arc. This is the so-called cervical curvature, the pillow. The role is to maintain this physiological curvature.
The length of a single pillow is 15 cm wider than the width of one's shoulder. The height is equal to the height of the fist (the height of the fist is higher than the height of the tiger's mouth) after compression. On the surface of the pillow, the part supporting the neck and the back (neck curvature) should be cylindrical and have a certain hardness, which can be set to support and support the neck curvature. The part supporting the back of the head should be 3-5 cm lower than the above part, so that it can support the head and adapt to the height of the neck.
Pillow too high or too low
The height of the pillow is also important. If the pillow is too high, the cervical vertebrae of the person will be mechanically distorted in the anterior flexion position, which will increase the tension of the back muscles, and will also lead to intense activity of the sternocleidomastoid muscles on the left and right sides of the neck, which hinders the normal blood circulation of the human body. Affects the smooth flow of the respiratory system, causing sore shoulders. After a long time, it will become a "double chin", and it is also very easy to cause cervical spondylosis.
The pillow is too low, which will also put the cervical vertebrae in an unfavorable state, resulting in tension in the sternocleidomastoid muscles, which will not achieve the purpose of eliminating fatigue.
The pillow is too hard, which can make the head muscles tense and seriously affect the relaxation of the whole body muscles.
If the pillow is too soft, it will cause the neck to stretch out. The excessive pulling of the neck will cause the muscles of the throat to be tight and easy to increase the snoring.
The ideal height of the pillow when sleeping, the adult is generally 6-8 cm, or equal to the size of the shoulder width of the human body. The pillow material should have a soft feeling and good elasticity, breathability, moisture resistance, moisture absorption and the like.
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