People with Alzheimer’s who cry all the time could be showing signs of advanced disease. However, you cannot rely on this one symptom alone to determine whether the patient is in the early or late stages of the disease. Patients with advanced Alzheimer’s disease often show signs of crying and laughing, loss of emotional control, and abnormal behavior. However, one should not rely on this one symptom alone, because some elderly people do not cry even in the late stage of the disease; while in the early stage of Alzheimer’s disease, some people may also show signs of depression and crying. Alzheimer’s disease is a slowly progressive neurodegenerative lesion that usually enters the late stage 5 to 10 years after its onset. The most typical manifestations of the late stage of the disease are obvious intellectual decline, inability to take care of themselves, incontinence and so on. Mental behavioral abnormalities such as frequent crying, irritability, or being depressed all day long are common manifestations of advanced dementia, but they do not occur in every patient.