Dementia is a brain disorder that seriously affects a person's ability to carry out daily activities. Alzheimer's disease is the most common form of dementia among older people. It involves the parts of the brain that control thought, memory and language. The causes of Alzheimer's disease are still not known and there is no cure.

What is Alzheimer's?

• Alzheimer's explained
• Alzheimer's and dementia - Q&A
• Alzheimer's disease
• Alzheimer's disease explained
• can you inherit Alzheimer's disease?
• dementia - what is it?
• risk factors in Alzheimer's disease
• types of dementia
• what are the warning signs?