Old love to sleep disease is as follows: First, some patients with cerebrovascular disease, cerebral blood supply deficiency, especially elderly patients due to heavy arteriosclerosis, poor vascular elasticity, slowing down the blood flow rate so that brain cells in the process of chronic lack of oxygen, manifested as love to sleep, generally shallow sleep, accompanied by decreased reaction, memory loss, etc.. Secondly, some patients with hyperlipidemia and high blood viscosity, who are obese and have a greasy diet leading to increased blood lipids and thick blood, appear sleepy and have peripheral symptoms. Then, some patients with episodic sleeping sickness, appearing to sleep anytime and anywhere, and in severe cases, sudden collapse, are recommended to have sleep monitoring and arrange time for rest during the day if necessary.