Key facts
- Alzheimer's disease is a physical illness that progressively damages the brain.
- It is the most common cause of dementia in the UK.
- Jon Snow recently revealed his diagnosis with Alzheimer's disease.
Alzheimer's disease is characterized as a physical illness that progressively damages the brain, making it the most prevalent cause of dementia in the UK. The recent public revelation of veteran broadcaster Jon Snow's diagnosis with the condition has brought increased attention to the disease, its symptoms, and its causes.