RAF225: What is Dementia?

There is a group of brain disorders in which the patient experiences a loss of cognitive function. The name used for this group is "Dementia". So it's not one particular ailment. But a group of them that have certain things in common. The cause of these disorders is thought to be the deterioration of brain cells. This is a natural process that occurs throughout our lives, but in people with dementia the loss of these nerve cells (neurons) is far greater. A normal adult brain has about 100 billion neurons. Also some sources indicated that at least one type of dementia shows no significant loss of neurons, indicating that other factors are at play.

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