The course of Alzheimer's disease typically lasts about 5 to 10 years, with a small number of patients surviving 10 years or longer. Most patients die from complications such as lung infections, urinary tract infections, and pressure sores. The prognosis of Alzheimer's disease is somewhat related to the quality of patient care and the effectiveness of drug treatments. Effective care can extend the patient's life and improve their quality of life, while also preventing complications like pressure sores and lung infections, as well as accidents such as falls and getting lost when going out. In addition to care, medications that improve cognitive function can be administered, such as cholinesterase inhibitors, NMDA receptor antagonists, and cerebral metabolic activators.