Alzheimer's disease is a type of dementia that causes problems with memory, thinking and behavior. Symptoms usually develop slowly and get worse over time, becoming severe enough to interfere with daily tasks. Dementia is a general term for memory loss and other cognitive problems that are serious enough to interfere with daily life.
Alzheimer's disease accounts for 60 to 80 percent of dementia cases. Currently there is no cure for Alzheimer's, but treatments for symptoms are available and research continues. Although current Alzheimer's treatments cannot stop the disease from progressing, they can temporarily slow the worsening of dementia symptoms, and improve quality of life for those with Alzheimer's and their caregivers. Today, there is a worldwide effort under way to find better ways to treat the disease, delay its onset, and prevent it from developing.