What Is Alzheimer's Disease?

Alzheimer's disease, the most common type of dementia, damages parts of the brain involved in memory, intelligence, judgment, language, and behavior. Almost half of people afflicted with Alzheimer's are between 75 and 85.

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Family Fights to Save 6 Year Old with Childhood Alzheimer’s: 'He's the Light of My Life,' Says Mom

Sanfilippo syndrome, also known as Childhood Alzheimer’s, is a progressive disease caused by a missing enzyme meant to recycle cellular waste.