One common type of elderly caregiver is a dementia caregiver. Dementia is a progressive deterioration of intellectual faculties leading to apathy, bewilderment and stupor. Currently dementia is thought of as an irreversible condition in middle to late life that cannot be overcome. The condition is typically caused by brain tissue degeneration. The caregiver needed attends to the resulting problems such as short- and long-term memory loss, impaired judgment, and inability to maintain appearance and hygiene. A live-in caregiver for a dementia patient can aid in bathing, changing, act as a liaison for disrupted relationships and serve as a companion.