Alzheimer's disease is characterized by symptoms that significantly impact daily life. These include marked memory loss, such as difficulty recalling recent events, dates, or newly learned information. Patients may also experience disorientation regarding time and place, and a decline in speech and writing abilities. In addition to cognitive symptoms, behavioral and psychological symptoms like agitation, sleep disturbances, and hallucinations can also manifest. Furthermore, patients may exhibit wandering, repetitive movements, and unusual behaviors.