|Alzheimers Disease also called as memory loss is a common form of dementia and affects memory, cognitive functions and other intellectual functions. Although memory loss occurs eith aging, Alzheimers Disease is different condition and can be defined as degenerative brain disorder characterized by a progressive loss of memory and other detrimental cognitive changes as well as lowered life expectancy. Addiction towards alsohol can produce Alzheimers Disease like symptoms but the effect is not yet proved and is still under investigation. Drugs can only alleviate the symptoms of alzeimers disease but cannot cure the disease. Review articles are the summary of current state of understanding on a particular research topic. They analyze or discuss research previously published by scientist and academicians rather than reporting novel research results.
Review article comes in the form of systematic reviews and literature reviews and are a form of secondary literature. Systematic reviews determine an objective list of criteria, and find all previously published original research papers that meet the criteria. They then compare the results presented in these papers. Literature reviews, by contrast, provide a summary of what the authors believe are the best and most relevant prior publications.
The concept of "review article" is separate from the concept of peer-reviewed literature. It is possible for a review to be peer-reviewed, and it is possible for a review to be non-peer-reviewed.