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Feb 13, 2024 · Overview. Dementia is a term used to describe a group of symptoms affecting memory, thinking and social abilities. In people who have dementia, the symptoms interfere with their daily lives. Dementia isn't one specific disease. Several diseases can cause dementia. Dementia generally involves memory loss.
Mar 12, 2022 · Dementia develops when the parts of your brain involved with learning, memory, decision-making or language are affected by infections or diseases. The most common cause of dementia is Alzheimer’s disease. But other known causes of dementia include: Vascular dementia. Dementia with Lewy bodies. Frontotemporal dementia. Mixed dementia.
What causes dementia? What are the different types of dementia? How is dementia diagnosed? Who can diagnose dementia? Dementia is the loss of cognitive functioning — thinking, remembering, and reasoning — to such an extent that it interferes with a person's daily life and activities.
Mar 15, 2023 · Key facts. Currently more than 55 million people have dementia worldwide, over 60% of whom live in low-and middle-income countries. Every year, there are nearly 10 million new cases. Dementia results from a variety of diseases and injuries that affect the brain.
Causes. Risk and prevention. About dementia. Dementia is not a single disease. It's an overall term to describe a collection of symptoms that one may experience if they are living with a variety of diseases, including Alzheimer's disease. Diseases grouped under the general term "dementia" are caused by abnormal brain changes.
Feb 13, 2024 · Alzheimer's disease is the most common cause of dementia — a gradual decline in memory, thinking, behavior and social skills. These changes affect a person's ability to function. About 6.5 million people in the United States age 65 and older live with Alzheimer's disease.
Alzheimer's disease is thought to be caused by the abnormal build-up of 2 proteins called amyloid and tau. Deposits of amyloid, called plaques, build up around brain cells. Deposits of tau form "tangles" within brain cells.
What Causes Alzheimer's Disease? Español. On this page: Aging and Alzheimer's risk. Genetics of Alzheimer's disease. Health, environmental, and lifestyle factors that may contribute to Alzheimer's disease. Scientists don't yet fully understand what causes Alzheimer's disease in most people.
Alzheimer’s disease is the most common cause of dementia. Dementia is a condition where problems with memory or other types of thinking make it hard for a person to do everyday activities by themselves.
Apr 1, 2024 · Causes. Signs & Symptoms. Diagnosis & Treatment. What Can You Do? More Resources on Dementia. Dementia is an umbrella term used to describe a range of neurological conditions affecting the brain that worsen over time. It is the loss of the ability to think, remember, and reason to levels that affect daily life and activities.
