Got a symptom but not sure what's causing it? Use our award-winning symptom checker to find out – it's free!
Alzheimer's disease is the most common type of dementia, affecting an estimated 850,000 people in the UK.
Our Health A-Z contains more information on Alzheimer's disease.
If you are worried about this condition you can try our free AI Symptom Checker here.
Severe head injuries require immediate medical attention because there's a risk of serious brain damage.
Our Health A-Z contains more information on Major head injury.
Important: If you have these symptoms, they may be unrelated to any of these conditions listed. If you are concerned about your symptoms then you should see a doctor.