In the Sea Services (Navy, Marine Corps and Coast Guard), a Mustang is an Officer who has promoted up from the ranks of Navy enlisted personnel through an in... Skip navigation Sign in
What is Alzheimer's disease? Alzheimer's disease is the most common cause of dementia. The word dementia describes a set of symptoms that can include memory loss and difficulties with thinking, problem-solving or language. These symptoms occur when the brain is damaged by certain diseases, including Alzheimer's disease.
Alzheimer's Disease Causes. While much progress has been made in Alzheimerâs disease (AD) research, the exact cause is unknown. Many scientists believe that a buildup of two abnormal structures in the brain play an important role. These structures are called amyloid plaques and neurofibrillary tangles.lzheimer's Disease Causes. While much progress has been made in Alzheimerâs disease (AD) research, the exact cause is unknown. Many scientists believe that a buildup of two abnormal structures in the brain play an important role. These structures are called amyloid plaques and neurofibrillary tangles.