We often feel cold all over the body, and cold hands and feet are more common, which is often called “Yang deficiency” in Chinese medicine, also known as “cold bottom” or “cold bottom”, which belongs to It belongs to the category of “limb syncope”. The limb syncope is caused by the loss of the proper balance between yin and yang qi, not being able to pass through each other, thus causing the yang qi to not function properly. Common causes are as follows: 1. Yang deficiency causes: This type is mainly due to the lack of yang qi in the body and the inability of qi and blood to reach the distal end of the body, resulting in cold hands and feet. 2, causes due to heat syncope: this type of person mostly likes to drink hot things, which is mainly due to too much evil heat in the body, resulting in Yang Qi occlusion and inaccessibility, the Yang Qi reaching the limbs is significantly reduced, and makes the hands and feet cold. 3, the cause of the cold disease: mainly due to too much cold in the body, so that the Yang Qi gradually declined and imbalanced, the Qi and blood in the operation of the cold impeded and can not reach the whole body, especially the ends of the limbs, and cause cold hands and feet. In addition, if it is a long-term cold hands and feet, need to pay special attention, usually need to promptly consult a doctor to find the cause of the disease, and the corresponding conditioning, for early recovery.