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Alzheimer's disease is the most common cause of dementia, accounting for 60-80% of dementia cases. Dementia is not a normal part of aging. It is caused by damage to brain cells that affects their ability to communicate, which can affect thinking, behavior and feelings.
While dementia is a general term, Alzheimer's disease is a specific brain disease. It is marked by symptoms of dementia that gradually get worse over time. Alzheimer's disease first affects the part of the brain associated with learning, so early symptoms often include changes in memory, thinking and reasoning skills.
In the simplest terms, dementia is a decline in mental function — thinking, remembering and reasoning — that is usually irreversible. It’s a syndrome, not a disease, notes neurologist Ron Petersen, M.D., director of the Mayo Clinic Alzheimer’s Disease Research Center and the Mayo Clinic Study of Aging in Rochester, Minnesota.
What’s the difference between dementia and Alzheimer’s disease? A lot of people use dementia and Alzheimer’s interchangeably — even medical professionals, says Dr. Bonner-Jackson. Though commonly linked to one another, they’re not always associated with every case of cognitive decline.
Dementia refers to a group of brain disorders that make it hard to remember, think clearly, make decisions, or even control your emotions. Alzheimer’s...
Dementia describes symptoms like memory loss in multiple diseases, and Alzheimer’s is the most common form. Here are the key differences and how to tell them apart.
Dementia is a group of symptoms, while Alzheimer’s is a disease. Learn about their similarities and differences.
In summary, dementia is an overarching term that refers to a range of symptoms affecting cognitive abilities, while Alzheimer's disease is a specific type of dementia characterized by progressive memory loss and cognitive decline.
Dementia describes symptoms that broadly affect a person’s cognitive functioning. Alzheimer’s disease is the most common type of dementia. Depending on the type and cause, dementia can...
Alzheimer's is the most common form of dementia, a general term for memory loss and other cognitive abilities serious enough to interfere with daily life. Our annual report reveals the burden of Alzheimer’s and dementia on individuals, caregivers, government and the nation’s health care system.