It is usually recommended to drink water 15 to 30 minutes after the end of exercise to avoid the health effects of drinking water due to factors such as body temperature and heart rate. Due to the higher body temperature after exercise, and usually drink a cold drink, and due to the amount of water, which in turn causes a sharp increase in blood volume, or electrolyte disorders. This may lead to insufficient blood supply to the cardiovascular system, which may cause angina and other related diseases. After exercise due to increased heart rate, body temperature rises, usually in fifteen minutes after the heartbeat and respiration will become stable, the body temperature will fall to the normal range, at this time it is recommended that a large number of drinking water, to replenish a large amount of water loss after exercise, to avoid the body due to lack of water leading to fatigue, thermoregulatory abnormalities and other conditions, but also to avoid a sharp increase in lactic acid leading to acidosis. The most suitable drinks are those containing a small amount of electrolytes, which can replenish water and lost inorganic salts, etc. for the body. When you feel unwell after exercise, please go to the hospital in time to avoid delaying your condition.