Factors affecting the body’s physiological response to the cold environment include hypothyroidism, colds, and nutritional deficiencies. 1. Hypothyroidism: Insufficient secretion of thyroid hormones will lead to lower body metabolism and affect the body’s regulation of temperature. 2. Colds: when the patient has a cold, the resistance drops, which will affect the response to the cold environment. 3. Nutritional deficiencies: when the body’s energy intake is insufficient, it is not enough to maintain the normal energy consumption of aerobic exercise, and subsequently affect the body’s response to the cold environment. Cold environment generally refers to sub-zero environment, stimulated by the cold environment, the body will autonomously enhance the heart, lungs and other organs metabolism. Adherence to exercise in the cold environment can improve the body’s ability to adapt to the cold, improve the body’s ability to withstand the cold, thereby strengthening the body’s various system functions. If there is any abnormality in the cold environment exercise, you should terminate the exercise in time and go to the hospital to receive a comprehensive examination.