Causes of Alzheimer’s Disease: An Overview
... What is Alzheimer’s disease? Alzheimer’s disease is a progressive, irreversible, and devastating brain disorder for which there is no cure. With Alzheimer’s disease, nerve cells in the brain (neurons)...

Alzheimer’s Disease: Overview of Diagnostic Tests
... What tests are used to diagnose Alzheimer’s disease? Alzheimer’s disease cannot be definitely diagnosed until after death, when the brain can be closely examined for certain microscopic changes caused...

Signs and symptoms
... Everyone has occasional lapses in memory. It''s often quite normal to forget the names of people whom you rarely see. But it''s not a normal part of aging to forget the names of familiar people and ob...

Causes
... The causes of Alzheimer''s aren''t well understood. But researchers have found that people with Alzheimer''s have brain cells that become damaged and die for unknown reasons. A healthy brain has about...

Risk factors
... Alzheimer''s is a complex disease that''s likely caused by a variety of influences. Although all of these influences may never be known, scientists have identified several risk factors that may increa...

Screening and diagnosis
... There''s no one test to diagnose Alzheimer''s disease. Instead, doctors diagnose Alzheimer''s disease through a process of elimination — ruling out other diseases and conditions that also c...