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.
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