Overview
Alzheimer's disease is the most common cause of dementia, a progressive brain disease in which memory and thinking slowly decline over years as brain cells are damaged and die. It usually begins with forgetting recent conversations and events, and gradually affects language, orientation and the ability to manage daily life. There is no cure, but some medicines can ease symptoms for a time, and early diagnosis allows planning, support and treatment of other health problems that make thinking worse.
Symptoms
- Forgetting recently learned information and important dates
- Repeating questions and misplacing things
- Difficulty finding words and following conversations
- Getting lost in familiar places or confusion about time
- Changes in mood, withdrawal and, later, needing help with daily care
When to see a doctor
See a doctor for worsening memory that affects daily life — early assessment allows treatment, planning and support for the person and family.
Causes
A build-up of abnormal proteins that damage and destroy brain cells; age, family history, and heart and lifestyle risk factors increase the risk.