The ability to sleep can also be referred to as hypersomnia or narcolepsy, which is generally excessive daytime or increased nighttime sleep. It is generally common in elderly patients. Blood viscosity and insufficient blood volume lead to slow blood flow, and slow blood flow leads to insufficient oxygen supply to the body’s tissues and organs. If the brain is not sufficiently supplied with oxygen and is in a state of lack of oxygen for a long time, the patient will show drowsiness, drowsiness, shallow sleep, and feel more tired and weak after sleep, and long-term memory loss and slow reaction will occur. Patients are advised to drink more water, eat more light food, and take oral lipid-lowering drugs or drugs to improve circulation if necessary. At the same time, patients can be given appropriate activities and are advised to perform regular exercise to promote blood circulation.