Exercise can temporarily increase the total number of immune function cells and return to normal after a few hours. When the number of white blood cells increases, it is beneficial for the body to eliminate invading pathogenic microorganisms. The influence of long-term regular exercise on immune function is mainly manifested in the enhancement of immune function activity, and it can also increase the number of immune function cells in a small amount in a quiet state. Therefore, long-term moderate regular exercise can enhance the body's immune function and enhance disease resistance.

Exercise can increase the body temperature, which is beneficial to improve the phagocytosis of cells to viruses and bacteria, help the body to prevent the invasion of protozoa, and inhibit its reproduction and diffusion in the body, thus improving the body's resistance and enhancing physical fitness.

2. What exercises can enhance immunity?

2. 1, take a brisk walk

As a national fitness promotion, "walking" is the safest way to exercise, and it is best to walk for 30 minutes every day. Walking can regulate immunity, improve disease resistance and speed up recovery after illness. People who are not used to exercise at ordinary times and seldom exercise should avoid excessive exercise at first, and the exercise time should not exceed 2 hours.

2.2. Yoga

Thymus is the center of cellular immunity in vivo, located in the thoracic mediastinum. Its main function is to regulate the proportion of T lymphocytes and secrete thymosin, so that the body can maintain cellular immune function and kill foreign bacteria. Many postures and breathing methods of yoga can stimulate the thymus, and improve the body's immune ability by stimulating the secretion of the thymus.

2.3. Swimming

Swimming in winter can improve the body's adaptability to cold, stimulate and promote blood circulation and metabolism, improve the sensitivity of body temperature regulation, and enhance the body's adaptability to external cold and hot temperature changes.

2.4, jogging

Outdoor jogging can enhance physical fitness, strengthen the adaptation of respiratory system to temperature, improve resistance, adjust the proportion of white blood cells, macrophages and lymphocytes in blood, and devour cancer cells that may exist in human body. Don't run too fast. Normal breathing is appropriate. Pay attention to inhale through the nose and exhale through the mouth.