Dementia is considered a late-life disease because it tends to develop mostly in elderly people. About 5% to 8% of all people over age 65 have some form of dementia, and this number doubles every 5 years above that age. It is estimated that as many as half of people in their 80s suffer from dementia.
Which Dementias Are Treatable?
Dementia due to long-term substance abuse
Tumors that can be removed
Subdural hematoma, accumulation of blood beneath the outer covering of the brain as a result of a broken blood vessel, usually caused by head injury