The main reasons why women are always sleepy are as follows: 1. physiological reasons, it may be that the patient has poor sleep quality at night or stay up late resulting in low energy during the day and the problem of always being sleepy. 2. if an older woman is always sleepy, but the patient sleeps well at night, consider the existence of cerebral atherosclerosis, cerebral blood supply deficiency. It is recommended that the patient improve the transcranial Doppler examination and recheck the blood lipids, blood sugar, fibrinogen, to see if the patient has high fat and high viscosity state of the blood and cause cerebral blood supply deficiency. 3, if a young woman is always sleepy, consider the functional reasons, such as the patient is more anxious, depressed, can also lead to mental depression, always sleepy.