Sleep has the function of restoring energy and relieving fatigue, which is an important guarantee of physical and mental health. There is no objection that sleep can eliminate fatigue, but what goes around comes around, and if too much sleep tends to cause patients’ mental depression. Because there is a certain change in breathing during sleep, the breathing becomes shallow and the oxygen intake is reduced, resulting in a mild hypoxic state in the brain. If the air circulation in the sleeping environment is not good, it will also aggravate the state of lack of oxygen in the brain. The longer the sleeping time, the longer the patient’s brain is deprived of oxygen, so the patient will be more and more spiritless, leading to dizziness, muddiness, dizziness. So 6-8 hours of sleep is enough for adults. Patients must get up in time after waking up and participate in more physical activities, because exercise can promote blood circulation and improve the state of dizziness.