Dementia is an illness of the brain. When a person develops dementia, their brain cells are damaged and die faster than normally. The loss of brain cells means that the brain does not perform as well as it should, and continuously lose the ability to do things. Often, memory is affected first and people forget important facts such as the name of their sons or daughter. Later, as the illness progresses, people get confused about things like where they are, what are they doing and why are other people there. People with dementia can become listless and lose interest in activities they have previously loved. In the later stages, people lose the ability to take care of themselves and may need help with bathing, dressing and eating. Questions may become repetitive and the same statements may be repeated.
Alzheimer’s disease is the most common cause of dementia among older people. Azhiemer’s is the loss of cognitive functioning—thinking, remembering, and reasoning—and behavioral abilities, to such an extent that it interferes with a person’s daily life and activities. Dementia ranges in severity from the mildest stage, when it is just beginning to affect a person’s functioning, to the most severe stage, when the person must depend completely on others for basic activities of daily living. Alzheimer’s disease was named after Dr. Alois Alzheimer. In 1906, Dr. Alzheimer noticed changes in the brain tissue of a woman who had died of an unusual mental illness. Her symptoms included memory loss, language problems, and unpredictable behavior. After she died, he examined her brain and found many abnormal clumps and tangled bundles of fibers. Plaques and tangles in the brain are two of the main features of Alzheimer’s disease. The third is the loss of connections between nerve cells (neurons) in the brain. Alzheimer's is a progressive disease, where dementia symptoms gradually worsen over a number of years. In its early stages, memory loss is mild,...