Call 911 or other emergency services immediately if signs of a stroke or transient ischemic attack (TIA) develop suddenly. These may include: Numbness, weakness, or inability to move the face, arm, or leg, especially on one side of the body, vision proble
How quickly dementia progresses depends on what is causing it and the area of the brain that is affected. Some types of dementia progress slowly over several years. Other types may progress more rapidly.
Dementia is difficult to prevent because what causes it often is not known. However, people who have vascular dementia may be able to prevent future declines by lowering their risk of heart disease and stroke.
Doctors diagnose the cause of dementia by asking questions about the person's medical history and doing a physical exam, a mental status exam, and lab and imaging tests. Tests can help the doctor learn whether dementia is caused by a treatable condition.
Some cases of dementia are caused by medical conditions that can be treated, fully or partly restoring mental function. When dementia cannot be reversed, the goal of treatment is to make life as easy as possible for the person and the caregivers.