Alzheimer 's Disease : The Most Common Sign Of Alzheimer Disease Essay

Alzheimer 's Disease : The Most Common Sign Of Alzheimer Disease Essay

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Alzheimer’s Disease
Alzheimer disease is a degenerative disease of the brain that causes dementia, which is a gradual loss of memory, judgment, and ability to function. This disorder usually appears in people older than age 65, but less common forms of the disease appear earlier in adulthood.
Memory loss is the most common sign of Alzheimer disease. Forgetfulness may be subtle at first, but the loss of memory worsens over time until it interferes with most aspects of daily living. Even in familiar settings, a person with Alzheimer disease may get lost or become confused. Routine tasks such as preparing meals, doing laundry, and performing other household chores can be challenging. Additionally, it may become difficult to recognize people and name objects.
Affected people increasingly require help with dressing, eating, and personal care. As the disorder progresses, some people with Alzheimer disease experience personality and behavioral changes and have trouble interacting in a socially appropriate manner. Other common symptoms include agitation, restlessness, withdrawal, and loss of language skills. People with this disease usually require total care during the advanced stages of the disease. Affected individuals usually survive 8 to 10 years after the appearance of symptoms, but the course of the disease can range from 1 to 25 years. Death usually results from pneumonia, malnutrition, or general body wasting (inanition).
Alzheimer disease can be classified as early-onset or late-onset. The signs and symptoms of the early-onset form appear before age 65, while the late-onset form appears after age 65. The early-onset form is much less common than the late-onset form, accounting for less than 5 percent of all cases of Alzheime...

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...e cases with many family members affected by Parkinson 's disease. However, certain gene variations appear to increase the risk of Parkinson 's disease but with a relatively small risk of Parkinson 's disease for each of these genetic markers. Environmental triggers are also suspected which would include exposure to certain toxins or environmental factors may increase the risk of later Parkinson 's disease, but the risk is relatively small.
Researchers have also noted that many changes occur in the brains of people with Parkinson 's disease, although it 's not clear why these changes occur. These changes include: the presence of Lewy bodies; which are clumps of specific substances within brain cells are microscopic markers of Parkinson 's disease. This is currently an important focus among Parkinson 's disease researchers.
What Are the Differences Between AD and PD?

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