Sleepy after exercise may be caused by fatigue, lack of oxygen or anemia.
1. fatigue: if strenuous exercise, physical exertion will be relatively large, easy to lead to physical exhaustion, in the body is too tired, the pressure will be relieved to some extent, the body and mind will be relaxed, so the exercise may be sleepy and want to sleep phenomenon.
2. Oxygen deficiency: the human blood circulation will be accelerated during exercise, physical strength will be a large number of consumption, and the brain needs more oxygen to maintain a state of wakefulness, if the amount of exercise is large, it will make the brain in a relative lack of oxygen, so after exercise will be sleepy and want to sleep performance.
3. Anemia: If the high-intensity exercise, will make the brain sympathetic nerve excitation, a short period of time generally will not have a particularly sleepy situation, and if this time to feel particularly sleepy, it is possible that their own weakness or the existence of the phenomenon of anemia.
If the phenomenon of sleepiness after exercise often occurs, the body is accompanied by other discomforts, it is recommended to actively go to the regular hospital, a clear diagnosis, in accordance with the doctor’s instructions to adopt a reasonable treatment program, so as not to delay the condition.