Waking up at five o’clock every day is called waking up early, first of all, we can consider that it is caused by the habit of rest and relaxation. The general sleep time is 8 hours, the previous night to sleep earlier may cause the next day to wake up early, as long as to ensure that the sleep time is sufficient, five o’clock in the morning is also a normal phenomenon. Older people sleep shallowly, and the length of sleep is usually shorter than that of young people, often waking up at 4-5 o’clock, but they have had enough sleep, which is also a normal physiological phenomenon. If the lack of sleep time, consider that it may be related to menopause, insomnia, neurological disorders and other conditions: 1, menopause: menopausal people hormone levels decline, which can lead to poor sleep quality, the phenomenon of early awakening; 2, insomnia: if you go to sleep very late, the next day is still more than five o’clock to wake up, and accompanied by waking up after sleepiness, fatigue, loss of appetite, and even affect the state of daytime life, consider insomnia. This kind of insomnia with early awakening is mostly co-morbid insomnia. This type of insomnia is mostly co-morbid with mental and psychological problems such as anxiety and depression. There may be tension, anxiety, depressed mood, negative thoughts, lack of interest or loss of pleasure, etc. For example, depression patients are often accompanied by early awakening symptoms, such patients may be accompanied by slow thinking, low emotion and reduced will, resulting in daytime excitement is suppressed, when the night excitement will be released, causing excessive alertness, so the total sleep time is shortened, may wake up at five o’clock every day; 3, neurological disorders: excessive work pressure, nervous tension, or long-term state of panic, resulting in plant nerve disorders, will also appear early awakening 4, other factors: long-term disturbed by external factors, such as sleep environment is not quiet enough, stimulated by other loud sounds, or the regular alarm for workers at work, the body for such a law to form a habit, may cause early awakening every day. Wake up at five o’clock every day, the specific reasons need to be combined with their own judgment, if necessary, to the hospital for examination, clear reasons for targeted treatment.