is alzheimer's disease and dementia the same thing?
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Dementia is a group of symptoms that affects mental cognitive tasks such as memory and reasoning. Dementia is an umbrella term that Alzheimer's disease can fall under. It can occur due to a variety of conditions, the most common of which is Alzheimer's disease. People can have more than one type of dementia.
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The hippocampus is affected by Alzheimer's disease. The damaged nerve cells in the hippocampus mean this part of the brain can't function properly, which can lead to the early symptoms of Alzheimer's – memory loss and disorientation. The temporal lobe is affected by frontotemporal dementia, a rare type of dementia.
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Vascular dementia can be slowed down in some cases, but it still shortens a person's lifespan. Some types of dementia are reversible, but most types are irreversible and will instead cause more impairment over time. Alzheimer's is a terminal illness, and no cure is currently available.
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Older people who start to have memory problems may be concerned that they have Alzheimer's disease, but if the symptoms are mild, they may be diagnosed with MCI instead. However, to be very clear, MCI is not a form of dementia.
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Alzheimer's disease is one type of dementia, but it's not the only one. There are many different types and causes of dementia, including: Lewy body dementia. Frontotemporal dementia.
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As Alzheimer's disease and other related dementias destroy brain cells, a significant symptom, known as “aphasia,” is losing the ability to speak and to understand speech. Aphasia worsens as the disease progresses. It becomes harder to remember the right words and process what others are saying.
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Who is affected? Alzheimer's disease is most common in people over the age of 65. The risk of Alzheimer's disease and other types of dementia increases with age, affecting an estimated 1 in 14 people over the age of 65 and 1 in every 6 people over the age of 80.
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Can Alzheimer's disease be inherited? In the vast majority of cases (more than 99 in 100), Alzheimer's disease is not inherited. The most important risk factor for Alzheimer's disease is age.
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Alzheimer's disease is formally recognized as a mental illness. The disease and its symptoms are outlined in the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR), which is the main tool used to diagnose mental illnesses such as Schizophrenia and Borderline Personality Disorder.
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Age-related memory loss and dementia are very different conditions, though they may share some overlap in symptoms. However, normal forgetfulness is often caused by lack of focus and it never progresses into serious territory. Dementia, on the other hand, will get worse over time.
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Despite the above similarities, the two disorders also have important differences. As expected, cognitive symptoms prevail in dementia and mood symptoms in bipolar disorder. In dementia but not in bipolar disorder there is evidence that brain structural abnormalities are diffuse and hippocampal volumes are smaller.
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People with Alzheimer's disease may become agitated or aggressive as the disease gets worse. Agitation means that a person is restless or worried. He or she doesn't seem to be able to settle down.
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Do People With Dementia Know Something Is Wrong With Them? Alzheimer's disease progressively destroys brain cells over time, so during the early stages of dementia, many do recognize something is wrong, but not everyone is aware. They may know they are supposed to recognize you, but they can't.
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Stroke and Alzheimer's disease are more intimately linked than people realize. Approximately one-in-three Ontarians will develop stroke, dementia or both, and the incidence for each increases the risk of the other. Stroke is the second most common cause of dementia and is often combined with Alzheimer's disease.
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Both mild cognitive impairment and mild dementia are characterized by objective evidence of cognitive impairment. The main distinctions between mild cognitive impairment and mild dementia are that in the latter, more than one cognitive domain is involved and substantial interference with daily life is evident.
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Memory loss that disrupts daily life may be a symptom of Alzheimer's or other dementia. Alzheimer's is a brain disease that causes a slow decline in memory, thinking and reasoning skills.
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It is sometimes difficult to tell whether a person has Alzheimer's disease or vascular dementia. It is also not unusual to have a mixed form of dementia, meaning the person has both vascular dementia and Alzheimer's disease together.