Best Dementia Elderly Care Dementia is not a specific disease but rather a general term for the impaired ability to remember, think, or make decisions that interfere with everyday activities. Alzheimer's disease is the most common type of dementia. Though dementia primarily affects older adults, it is not a part of normal aging. Dignity lifestyle is the Best dementia elderly care center that treats Dementia People. They have specialized dementia centers designed for patients suffering from dementia and alzeheimer's.