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Lecture 6

Kinesiology 1070A/B Lecture 6: Dementia

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Kinesiology 1070A/B
Harry Prapavessis

October 8, 2016 Dementia Dementia is a group of symptoms affecting memory, thinking and social abilities severely enough to interfere with daily function. Though it generally involves memory loss, memory loss has different causes so memory loss alone doesnt mean you have dementia. Mild cognitive impairment (MCI) causes slight but noticeable and measurable decline in cognitive abilities, including memory and thinking skills. A person with MCI is at an increased risk of developing Alzheimers or another dementia. 1020 of those 65 and older may have MCI. Symptoms: Cognitive changes: o Memory loss o Difficulty communicating or finding words, reasoning or problemsolving, handling complex tasks, planning and organizing, coordination and motor functions o Confusion and disorientation Psychological changes: o Personality changes o Depression o Anxiety o Inappropriate behaviour o Paranoia o Agitation o Hallucinations Dementia involves damage of nerve cells in the brain, which can occur in several areas of the brain. Dementia affects people differently, depending on the area of the brain affected. 56 Alzheimers Disease, 4 brain injury, 6 other causes, 14 vascular causes or multiInfarct Dementia, 8 Parkinsons disease, 12 multiple causes. Progressive Dementias Alzheimers disease the most common cause of a progressive dementia in older adults, but there are a number of causes if dementia. Depending on the cause, some dementia symptoms can be reversed. Plaques and tangles are often found in the brains of people with Alzheimers. Plaques are clumps of a protein called betaamyloid, and tangles are fibrous tangles made up of tau protein. Vascular dementia: the result of damage to the vessels that supply blood to your brain. Blood vessel problems can be caused by stroke or other blood vessel conditions Lewy body dementia: are abnormal clumps of protein that have been found in the brains of people with Lewy body dementia, Alzheimers and Parkinsons. This is one of the more common types of progressive dementia.
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