Alzheimer's Disease, Severity Comparison

Numéro d’image : 12628549
Alzheimer's Disease, Severity Comparison
Comparison of increasingly severe stages of Alzheimer's disease in the human brain. Alzheimer's disease (AD), also known as Alzheimer disease, or just Alzheimer's, accounts for 60% to 70% of cases of dementia. It is a chronic neurodegenerative disease that usually starts slowly and gets worse over time. The most common early symptom is difficulty in remembering recent events (short-term memory loss). As the disease advances, symptoms can include problems with language, disorientation (including easily getting lost), mood swings, loss of motivation, not managing self care, and behavioural issues. As a person's condition declines, they often withdraw from family and society. Gradually, bodily functions are lost, ultimately leading to death. Although the speed of progression can vary, the average life expectancy following diagnosis is three to nine years. About 70% of the risk is believed to be genetic with many genes usually involved.
Licence : Droits gérés
Crédit: Science Photo Library / NIH / National Institute on Aging
Taille de l’image : 2710 px × 4800 px
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Property Release : Non requis
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