Alzheimer's disease is a painful forgetfulness that is much different from the normal mild forgetfulness commonly observed in the elderly individuals. Over the course of time, the affected individual forgets about himself and the external world surrounding him. This condition is often accompanied by anxiety, depression and paranoia. Till this moment, there is no cure for Alzheimer's disease, however, there are medications that slow the progress of Alzheimer's disease.

Though Alzheimer's disease is the most common form of dementia, there are some other forms of dementia as well such as vascular dementia, senile dementia , Parkinson's disease, Pick disease and many others. While some dementia may also develop as a result of the side effects of medications, alcohol and drug abuses, head injuries.

Nearly four million people in the United States are affected by dementia and Alzheimer's disease. Among them 2.4 million people are affected by Alzheimer's disease solely. The prevalence of Alzheimer's and dementia increases with age. The risk for Alzheimer's and dementia is higher is higher for the elderly individuals over the age of 60 years or above.

The most prominent symptom of Alzheimer's and dementia is memory loss accompanied by significant changes in personality. The symptoms become worsened as the disease progresses. General confusion, anxiety and depression are quite prevalent. Unfortunately Alzheimer's disease has no cure at all. Dementia and Alzheimer's disease can make an individual absolutely isolated in his own inner domain.