The function of the pillow is to keep the balance between the head and the lumbar spine, so as not to oppress the cervical spine; When sleeping on your back, the height of the pillow is 5 to 8 cm. When sleeping on the side, according to the shoulder width of each person, the height of the female pillow is 7 ~ 12cm, and the height of the male pillow is 1 1 ~ 14cm. Proper pillow height can make the cervical vertebra not uncomfortable because of poor height during sleep, but not everyone will keep the same sleeping position during sleep, and often lie on their back and side alternately. So when choosing a pillow, the height of the pillow is 8 to 10 cm, and the male pillow can be increased by 2 cm. In order to buffer and reduce the vibration when walking and jumping, and protect the brain, the seven vertebrae of the human cervical vertebra are not just vertically superimposed, but form a smooth and forward arc, which is the so-called physiological curvature of the cervical vertebra. The function of the pillow is to maintain this physiological curvature. The length of a single pillow should be greater than 15 cm, and the height should be equal to the height of the compressed fist (the height of the fist is the height of the tiger's mouth). On the surface of the pillow, the part supporting the neck and back (neck curvature) should be cylindrical and have a certain hardness to set off and support the neck. The part supporting the back of the head should be 3-5 cm lower than the above parts, so as to support the head and adapt to the height of the neck. The content of the pillow is also very important, so you should choose it according to your personal situation. For example, kapok pillows are comfortable and soft, and buckwheat skin pillows are moderately soft and hard. Qingdao World Treasure-Pillow experts remind: Because everyone's physical condition, cervical curvature, length and size are different, tailoring healthy pillows with different radians may be the best choice to build a new pillow health relationship. Choosing a pillow that conforms to human mechanics design is not only beneficial to the cervical spine, but also beneficial to the physiological curvature of the whole spine and paravertebral muscles. The source of all diseases starts from the spine, and the spine can remain healthy forever. It takes some time to choose the right pillow. There are many scientific and medical evidences about how to use pillows. Temperature: After people fall asleep, the head temperature is generally 34-34.5 degrees Celsius, which is several degrees lower than the body temperature. If the head temperature is too high, it is not easy to fall asleep. Therefore, people choose cool pillows and warm pillows at different latitudes and seasons. In summer, most people often add a cushion to their pillows. Therefore, the choice of pillows should conform to the regional and seasonal characteristics, so that the head can keep the best sleeping temperature. Height: Whether sleeping on your back or on your side, it is best to choose a pillow that can keep the normal physiological curvature of your neck. The height of the pillow is 15 cm when an adult lies on his back or side. As the saying goes, rest easy, but it's not. The high pillow makes the cervical vertebra lean forward too much, and the soft tissue of the neck is too tense and tired, which is easy to stiff neck. Over time, it will also cause morphological changes of the neck bones, such as physiological bending and straightening. Some people like to sleep without a pillow or the pillow is too low, which is not good. Will make the head congestion, easy to cause eyelid and facial edema, chin up high, easy to open your mouth to breathe and snore. Hardness: A hard pillow will reduce the contact area with the head, increase the pressure, and make the scalp 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. 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. How to choose a pillow that suits you? People spend13 of their life in sleep, and pillows can be said to be the longest companionship. Choosing an ergonomically designed pillow can not only ensure high-quality sleep, but also affect two-thirds of life's work, study and life quality. Physicians say that all diseases originate from the spine. The function of the pillow is to ensure that the physiological curvature of the human neck does not deform during sleep. Experts pointed out that the cervical vertebra is located at the top of the human spine, wrapped around the neck and composed of seven vertebrae. The so-called physiological radian is the smooth convex arc formed by these seven vertebrae. Improper pillow selection directly affects sleep. According to the statistics of relevant departments, insomnia accounts for more than 35% of the total population in China. 60% of traffic accidents are caused by drivers sleeping less than 3.5 hours. The so-called "sit back and relax" argument is actually not scientific. The pillow is too high, no matter what position you sleep in, you can't keep the normal lordosis of the cervical vertebra, which will increase the burden of the cervical vertebra. If you have neurasthenia symptoms such as neck pain, headache, dizziness, tinnitus, insomnia, or feel numb after sleeping in the middle of the night, it may be that the pillow is too high; If the pillow is too low, the head will be congested, leading to edema of eyelids and face, chin lifting up, and it is easy to open your mouth and breathe and snore. Too low pillow, no pillow or too soft pillow can also cause neck and shoulder pain. Experts believe that whether sleeping on your back or on your side, it is best to choose a pillow that can keep the normal physiological curvature of your neck. ◇ Improve sleep quality and regulate insomnia and dreaminess; Improve human microcirculation, increase immunity and disease resistance; Correct sleeping posture, promote normal bone growth and prevent cervical spondylosis; ◇ Relieve the function of central nervous system, and play the role of analgesia, sedation and spasmolysis, anti-inflammatory and detumescence; ◇ Adjust blood pressure and reduce blood lipid and blood viscosity; ◇ The effect of regulating gastrointestinal function and stopping diarrhea is remarkable; ◇ Antibacterial, softening blood vessels and activating water molecules in the body; ◇ Promote fat metabolism, promote blood circulation, and lose weight healthily; Eliminate fatigue, activate cells, strengthen brain and improve intelligence, and resist aging; ◇ Beauty and skin care, lose weight and get a good sleep. ◇ Improve memory and sleep well. Pillows depend on each other and are lovers' favorite. Health is the best variety. There are all kinds of pillows on the market, so don't be picky. The price can only be used as a reference. The key is to know well and choose the one that suits you best. Buckwheat pillow, a pillow made of natural materials, has its own reasons. Traditional things are always handed down for a reason. Buckwheat has a tough and unbreakable diamond structure, and the buckwheat skin pillow can change its shape with the head moving left and right, making it very comfortable to sleep. The cleaning method is to expose the chemical fiber pillow to the sun regularly-cheap but not practical. This is an ordinary man-made fiber pillow. Because the chemical fiber material is airtight, it is easy to deform into blocks and lack elasticity after being used for a long time, and the pillow is uneven. Therefore, it is recommended that you do not choose this cheap but impractical pillow when purchasing pillows. Latex pillow-in addition to the price, latex has good elasticity, is not easy to deform and has strong support. It is said that latex can change the head shape of children with developing bones, and there will be no allergens such as dust and fiber that cause respiratory allergies. Some latex pillows also have the functions of massage and promoting blood circulation. Latex pillow is an ideal pillow, but it is also more expensive. Feather pillows-Feather pillows that are easy to use but inconvenient to clean should be made of big feathers, which are fluffy and can provide better support for the head and will not be deformed due to long-term use. Moreover, eiderdown has the advantages of light weight, air permeability and no mugginess. Feather pillow is a kind of pillow with good material, but it can't be washed-how to listen to your own effect. The general health pillow is a kind of medicine pillow, which combines traditional Chinese medicine from China with forage, so that you can soothe your nerves, strengthen your brain, cool and improve your eyesight, prevent diseases and strengthen your body in your unconscious sleep. But whether the health pillow is really effective depends on your own feelings.