People with cold blood are prone to blood disorders or vascular sclerosis, resulting in coronary heart disease, cerebral thrombosis, etc. Tumors are also highly prevalent diseases, which usually cause endocrine disorders and can seriously affect sexual function. The symptoms of blood cold are mainly cold pain in the hands and feet, purple skin, stomach pain, delayed menstruation in women, purple menstruation with stasis, preference for warmth, fear of cold, and pain around the body will be reduced after warmth. Blood cold is more common in daily life and requires more exercise and proper supplementation of warm food in the diet, such as mutton, chicken, chili and round onion.