The family lives in Nanjing, Qixia District, Sun has always liked fitness, usually when the morning exercise used to wear a pair of socks with elastic sports socks. Due to the rain this morning, Mr. Sun switched to indoor exercise. But only after a short while of practice, he felt a little dizzy. After going to the hospital, he found that his blood pressure was high, and under the doctor’s careful examination, he found that his ankle was strangled above the socks into a groove. The doctor said that the onset of the disease was related to the fact that he always wore tight-lipped sports socks. The ankle is an important gate of blood circulation in the foot, the socks are loose and tight, the venous blood can flow back to the heart through the ankle, if the socks are too tight, it will affect the return flow of blood to the heart, increasing the burden on the heart, and this can even lead to high blood pressure for a long time. For example, some people often feel cold feet, may also be too tight with the socks so that the blood flow in the foot is not smooth, resulting in reduced metabolism of the foot. In addition, too tight socks can also lead to thickening of the corneal layer of the foot skin, roughness, dryness, and may induce corns, foot pads and so on. No disease can also cause cold feet, swollen calves, pain and other symptoms, for the liver, spleen, heart, kidney weak people will promote and aggravate the local swelling. In the long run, the consequences are endless. Particular attention should be paid to the elderly and patients with diabetes, atherosclerotic occlusive disease, thrombo-occlusive vasculitis and other diseases. The best socks for the elderly are those that are “tailor-made” for the elderly. Even if the sweat glands in other parts of the body stop producing sweat, the sweat glands in the palms of the feet still produce more. Especially in summer, elderly people should wear thin, breathable, moisture-absorbing and moisture-removing socks to facilitate the evaporation of foot sweat. In terms of texture, bacteria multiply on socks in the order of polyester, nylon, acrylic, wool, cotton yarn and silk socks. This is due to the fact that polyester and nylon socks have poor sweat absorption, while wool, cotton and silk socks absorb sweat and the water-soluble dirt they contain very well, so bacteria multiply more slowly on these socks. Therefore, socks for the elderly should be loose-fitting wool, cotton or silk socks. If your socks are too tight, you can use a steam iron to fatten them up, such as finding a beverage bottle with a moderate width, propping up the socks, setting the iron temperature according to the texture of the socks, and gently ironing on both sides of the socks to loosen them up.