Over the past year or so, bedding made of various magnetic materials has appeared on the streets of Shimonoseki. Such as magnetic mattress, ultra-luxury massage mattress, healthy thin pad, magnetic duvet, super multi-purpose quilt, magnetic health pillow, sleep pillow, etc. Not only that, there are many small magnetic objects, such as magnetic belts, magnetic necklaces, bracelets, eye masks, insoles, stickers and so on. Tema health underwear, tema massage sheets and so on. And it is very expensive. When you open the ancient medical books in China, you will find that magnetic therapy has a long history. As early as the Eastern Han Dynasty, Shennong Herbal Classic recorded that magnets can be used to treat many diseases, such as joint pain and rheumatism, swelling and pain of limbs, immobility and so on. Records of famous doctors in the Southern and Northern Dynasties recorded in more detail that magnets have the functions of tonifying kidney and strengthening spine, benefiting essence and relieving annoyance, dredging joints and so on. Since then, magnetic therapy has been widely used by doctors of all ages. As a safe and effective treatment, it is accepted by patients' families. With the progress of the times and the development of science and technology, people have a deeper understanding of magnetic therapy. According to Lu Shibi, an academician of China Academy of Engineering, people spend about one third of their day in bed. Improving sleep quality and improving sleep environment are the main contents of health care work. At present, medical research on the effects of magnetic field, far infrared ray, negative ion, sound wave and light wave on human body is getting deeper and deeper. Blood circulation is the source of human life activities. Repeated blood circulation and ubiquitous blood nourish the human body and regulate various activities of the body through hormones and immune mechanisms. When aging, the arterial wall loses its elasticity, resulting in atherosclerotic plaques at the bifurcation and bend of the artery, which leads to insufficient microcirculation perfusion of some organs, long-term ischemia and hypoxia, and organic lesions. Such as coronary heart disease, arteriosclerosis, cerebral ischemia and femoral head necrosis. Scientific discovery shows that magnetic field, as a physical therapy factor, has physical energy, which can produce a series of biological effects after acting on human body and become the basis of magnetic field. Experiments show that magnetic field can change blood rheology, reduce blood viscosity, reduce the aggregation between red blood cells, improve the activity of superoxide dismutase, and enhance the ability of scavenging free radicals in vivo. Excessive free radicals will accelerate human aging. After the magnetic field acts on the human body, one of the main changes in the body is the influence on blood circulation, especially the improvement of microcirculation. The improvement of microcirculation enhances the material exchange ability of tissue cells and improves the cell vitality. When the human body is sleeping, the blood flow slows down, which is the reason why many patients with cerebral arteriosclerosis get sick in the early morning. The newly invented magnetic bedding can improve microcirculation. It is estimated that magnetic bedding with good quality can increase the cerebral blood flow of healthy people during normal sleep by about 10%, thus improving the quality of sleep. For people in sub-health state, especially for dizziness, headache, fatigue, insomnia and other symptoms have been significantly improved. It plays an effective preventive role for people with cerebral arteriosclerosis. The magnetic field at the poles of the earth is the strongest, and the long-lived Eskimos are closest to the North Pole. Magnetic force has such a magical effect. Why did so many live magnets never stand on the market in the past? In the view of Yang Zibin, an academician of the International Society of Medical Bioengineering and executive deputy director of the National Medical Device Expert Committee, the role of magnetic therapy health care is not a one-off event, and the use of magnetic therapy tools should be scientific. It is impossible for a little magnetism to act on people in a short time. Therefore, after long-term research, scientists have found that the best way is for people to use magnetic supplies at rest. The intensity and distribution of the magnetic field are very special. Experts remind that people must know more when buying magnetic supplies. At present, the dominant magnetic products in China's market mainly include Kang Bai, Zhongmai and Saiyuan.