The elderly do not sleep all day can be seen in physiological phenomena, disease pre-expression, organic diseases and other situations, as follows: 1, physiological phenomena: with the growth of age, the elderly need less and less sleep, some elderly people only need to sleep 3-4 hours a day is enough, as long as the daytime energy, does not affect the normal study, life does not need to be nervous, and do not need to intervene; 2, disease pre-expression: such as anxiety Depression, such elderly people do not sleep all day, sleep is very poor, the treatment is the need to take anti-anxiety, anti-depressants, with some sleeping pills; 3, organic diseases: such as Alzheimer’s disease, Parkinson’s disease, cerebrovascular disease, etc., can lead to a sudden reduction in sleep, poor sleep. These need to go to the hospital to do the relevant tests to clarify the diagnosis and give the appropriate intervention according to the diagnosis.