What’s the Difference Between Alzheimer’s and Dementia?

Is Alzheimer’s the same as dementia?

At our Harley Street memory clinic, patients and families often ask this question. It’s a natural question — and a vital one. While these terms are often used interchangeably, they don’t mean the same thing. Understanding the difference can help you take the right next step in seeking care.

Dementia: An Umbrella Term

Dementia isn’t a disease itself. It’s a general term that describes a set of symptoms, including:

  • Memory loss
  • Confusion
  • Language difficulties
  • Reduced ability to carry out daily tasks

It’s caused by various diseases or conditions that damage the brain. The most common cause of dementia is Alzheimer’s disease, but others include:

  • Vascular dementia
  • Lewy body dementia
  • Frontotemporal dementia
  • Mixed dementia

Alzheimer’s Disease: The Most Common Cause

Alzheimer’s is a progressive neurodegenerative disease. It accounts for 60–70% of dementia cases. It affects the brain by forming plaques and tangles that interfere with normal function, especially memory.

Typical early signs include:

  • Forgetting recent conversations
  • Repeating questions
  • Losing track of time
  • Misplacing objects
  • Difficulty with words or decisions

At our private memory clinic in London, we often provide a same day dementia assessment for people experiencing these symptoms, helping them get answers faster.

Why This Distinction Is So Important

Dementia is a syndrome. Alzheimer’s is a cause.
Not all dementia is Alzheimer’s — and not all memory loss is dementia. This distinction helps guide:

  • The correct diagnosis
  • Personalised treatment plans
  • Access to the right support
  • Planning for future care

Advances in Diagnosis: The New Alzheimer’s Blood Test

We’re proud to offer the new Alzheimer’s blood test — a cutting-edge diagnostic tool that detects biomarkers of the disease with a simple blood sample.

This is now available as part of our Alzheimer’s private diagnosis London service — with results often available within days.

Why Choose a Private Clinic?

Choosing a private cognitive assessment in the UK means:

  • Rapid access to specialists
  • Longer appointments and continuity of care
  • Advanced imaging and testing options
  • Clear answers with compassion and discretion

Our memory loss private clinic offers a trusted, patient-centred approach — especially for those concerned about a parent’s memory changes.

Take the First Step

If you’re noticing early changes in a loved one, don’t wait.
private dementia diagnosis for your parent could bring relief, clarity, and a plan.

Located in Harley Street
Same day dementia assessment available
Ask about the new Alzheimer’s blood test

Call us today or book online.
Get the answers you need — from a clinic you can trust.