AD usually occurs in old age, and is marked by a decline in cognitive functions such as remembering, reasoning, and planning. "(Robinson, 1999). A summary of other definitions found in other sources is: Alzheimer's disease is a little known-about, but common, incurable or chronic brain disease that destroys the cells of the brain, and causes gradual loss of mental function and troublesome changes in behavior. The disease is thought to attack the parts of the brain that are responsible for controlling thought, memory, and language. Along with this complex definition comes abundant general information, facts and figures.
During the preclinical stage of Alzheimer’s disease, people are asymptomatic, but unfortunately there are toxic changes taking place in the brain. Abnormal deposits of proteins form amyloid plaques and tau tangles throughout the brain, causing the once-healthy neurons to work less efficiently. Over time, neurons lose the ... ... middle of paper ... ...ww.alz.org/alzheimers_disease_4719.asp (n.d.). Retrieved from http://www.nia.nih.gov/alzheimers/topics/causes (n.d.). Retrieved from http://www.nia.nih.gov/alzheimers/topics/treatment (n.d.).
Alzheimer’s disease (AD) is a severe, incurable form of dementia that causes impairment and cognitive deficits such as language, speech, memory and basic motor skills (Buckley, 2011). Currently in the United States, there are 5.2 million individuals living with AD (Alzheimer’s Association, 2013). AD is a deterioration of one’s cognitive functions that prevents the ability for daily function and unfortunately has no known cure or preventative methods (Buckley, 2011).The main deficit that AD has on the brain is the deterioration of different areas of the brain. Not only does a physical toll contribute to patients with AD, but there is also a social stigma that impedes on the normal daily function of life. In this literature review, I will discuss the different effects that AD has on the brain and the outcome of what various repercussions can occur.
Analysis of Dementia Overview The term dementia refers to a serious loss in memory and other intellectual abilities in a formerly unimpaired person, further than what might be expected from normal aging (Dhanani & Wilkins, 2008). The origin of the word dementia is from a latin word “demens” meaning insane or being out of one’s mind (Banerjee, 2011, p.2). According to Miller (2009, p. 263), dementia is a syndrome not a disease, that means it is a pattern of symptoms that can be caused by many different illnesses. There are approximately twenty four million people with dementia in the world, with an additional four and a half million newly identified every year (Ferri, Prince, Brayne, Brodaty, Fratiglioni, 2005, p. 2113). Types of Dementia The most common types of dementia are the primary dementias; which occur as a result of pathological conditions of the brain.
Alzheimer’s disease (AD) is a progressive and fatal form of dementia, frequently seen in the elderly altering their cognition, thought process and behavior. AD is reported in about half of patients that have a dementia diagnosis; one study states that about 10.3% of the population over 65 years is affected by dementia with an increase to almost 50% over the age of 85. (Beattie, 2002) Alzheimer’s disease is not a normal part of the aging process in humans, but rather found in a group of diseases that affect the brain leading to a decline in mental and physical control. AD when diagnosed has a very slow and gradual course, initially affecting the individual’s short term memory. (Beattie, 2002) Alzheimer’s disease is the 6th leading cause of death, affecting more than five million people in the United States and is also one of the most common forms of dementia.
Contrary to belief Alzheimer’s is not a normal part of aging. Different parts of the brain are affected causing multiple symptoms sometimes not diagnosed until later stages in the disease. Nerve cell death and tissue throughout the brain is the most significant affect over time. Naturally by age twenty-five the brain starts to decrease in size. With Alzheimer’s, the amount decrease is extremely significant.
Alzheimer's shortens life expectancy substantially: the typical duration is 8 to 10 years. Deaths are attributable to intervening illnesses unrelated or indirectly related to the disease and terminal complications. An even more devastating feature of Alzheimer's is the impact it has on the patient's family. Caregivers report feeling helpless, frustrated and irritable. Families often become impoverished before the patient is eligible to receive financial support.
This memory loss is slowly joined with forgetfulness, cluelessness of hygiene, impaired judgement, and loss of concentration. The later symptoms... ... middle of paper ... ...new treatments and earlier diagnostic. Alzheimer’s Disease is the most common form of dementia, yet there is no cure. As the disease progresses, patients get worse and worse until death. This disease is caused by a buildup of amyloid plaques and neurofibrillary tangles in the brain, which do not let the brain function properly.