Generally speaking, strenuous exercise refers to sports with large amount of exercise, heavy exercise load and high speed in a short period of time, such as 100 meter sprint, 50m swimming and 200m running. Intense exercise can increase vital capacity, increase muscle content and improve immunity to some extent. Strenuous exercise is anaerobic exercise, while general exercise is aerobic exercise; Intense exercise needs to consume a lot of oxygen and water, which makes people physically exhausted. Drink as much light salt water as possible and replenish body fluids in time so as not to hurt your body. Everyone has different standards.

Excessive exercise is excessive exercise. Exercise is an important means to improve health and prolong life. However, the more exercise, the better. Excessive exercise damages the immune function of the body and affects health.

This is because people will produce more hormones such as adrenaline and cortisol during strenuous exercise. When these hormones are increased to a certain amount, the ability of immune organ spleen to produce white blood cells will be greatly reduced, and the activities of A cells, B cells and natural killer cells (NK cells) in lymphocytes will be greatly reduced, among which natural killer cells can be reduced by 35%.