The main reasons for men to be afraid of cold are anemia, low blood pressure, insufficient secretion of thyroid hormones, Yang deficiency, etc., as follows: 1, anemia: iron deficiency anemia affects the oxygen-carrying capacity of the blood, resulting in impaired tissue metabolism, insufficient heat production, very easy to feel cold. 2, low blood pressure: people with low blood pressure have poor peripheral circulation, and are also prone to cold extremities and cold phenomenon. 3, thyroid hormone secretion Insufficient: resulting in slow metabolism and insufficient heat production in the body, the phenomenon of cold extremities will appear. 4, Yang deficiency: Yang deficiency will be cold, cold hands and feet, you can use warm yang herbs such as eucommia, cinnamon, cinnamon branch, Epimedium to regulate, appropriate increase exercise, exercise can make people’s metabolic capacity, improve the function of the internal organs, moxibustion also helps to improve the Yang deficiency physique.