Why are your feet cold and sweaty in winter?

What is the reason for cold feet sweating in winter? Sweating is one of our physiological functions. The weather is hot, and the body needs to dissipate heat, so we should lower the temperature, otherwise we will get heatstroke like heatstroke and our body will be abnormal. But the body is not hot in winter, so the body, feet or limbs sweat, which is an abnormal sweating, often related to sweating, that is, the autonomic nervous disorder that dominates sweating. After sweating, my feet feel very cold because of the heat dissipation effect of sweating. Traditional Chinese medicine believes that there are many reasons, but most of them are related to deficiency syndrome. One is the deficiency of qi and blood, which leads to the yang at the far end not being warm. Some people's constitution and body itself are yang deficiency and cannot be warm. Judging the objective situation also depends on the patient's tongue pulse, because there are many patients with yang deficiency, but he does not sweat. Generally speaking, the body should still be a kind of sweat that cannot be produced by warmth.