About 55 million people worldwide have dementia and approximately 70 percent of them have Alzheimer's disease, the most common type of dementia. Alzheimer's dementia which is a degenerative brain disorder involves a progressive loss of memory especially for recent events which worsens gradually. The person may misplace his belongings often, repeatedly ask the same questions, lose the path in familiar surroundings, may find it difficult to multitask or do activities in proper sequence, have behavioral disturbances, and so on, eventually leading to a state of getting dependent for all activities of daily living.
In dementia, neurons degenerate and lose connections between them due to malfunction of brain proteins.
