An elderly person who sleeps all day is not necessarily at the end of his or her life. In clinical practice, an elderly person who has reached the end of his or her life is called a dying person. If the elderly only sleep all day, but do not show some abnormal mental reaction and behavior, or physical function abnormalities, it may just be the poor quality of sleep, or the low function of body organs, need to sleep all day to compensate. However, if the elderly sleep all day at the same time, accompanied by slow reactions, limb weakness and other performance, or the existence of cardiovascular, cerebrovascular, respiratory and other diseases, sleep all day suggests that the condition may aggravate or worsen, it is recommended that timely medical treatment. 1, cardiovascular and cerebrovascular diseases: the elderly due to age, high viscosity of blood vessels, prone to atherosclerosis, arterial stenosis and other phenomena, resulting in insufficient blood supply to the brain. Insufficient blood supply to the brain will produce hypoxia, causing the elderly to sleep all day. Severe cases may die of brain hemorrhage due to atrophy or vascular accidents caused by long-term brain hypoxia, and the elderly may be unconscious, slanting mouth, unintelligible or incomprehensible, and it is recommended that they be sent to the hospital for treatment in a timely manner; 2. Respiratory obstructive diseases: such as chronic obstructive pulmonary disease, respiratory distress syndrome, etc., can cause the elderly to have difficulty breathing, reduced access to oxygen and excessive accumulation of carbon dioxide in the body, which can cause Carbon dioxide anesthesia, appearing to sleep all day and awake at night. However, when the condition is serious, some of the elderly may be life-threatening due to asphyxia, and these elderly usually have coughing, coughing sputum, barrel-shaped chest, blue lips and other symptoms; 3, abnormal metabolic diseases: common liver and kidney metabolic disorders, hypothyroidism, etc., because liver and kidney metabolic disorders can cause high blood ammonia levels, which can have toxic effects on the central system and inhibit human activities, causing the elderly to sleep all day, and can also appear The symptoms such as hand fluttering tremor, blurred consciousness, etc. can inhibit breathing and cardiac arrest in severe cases, endangering the health of the elderly. In the case of hypothyroidism, the overall metabolic level of the body is reduced, and the movement is slowed down, which can develop into sleeping all day. However, it usually does not affect life expectancy. Generally, the dying elderly mainly show symptoms such as irregular heart rhythm, slowed heartbeat, shallow to deep breathing, and drowsiness and coma, not simply sleeping, but loss of consciousness and inability to respond to external stimuli, such as tapping and shouting can not wake up the elderly. If there are such symptoms, it is recommended to seek emergency medical attention in order to avoid delaying the condition.