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Why should you take control of your Alzheimer’s risk?

A gentle reminder: Living with type 2 diabetes means looking after not just your blood sugar, but your whole self, including your brain.

Research shows that people with diabetes are more likely to develop Alzheimer’s and other forms of dementia.1-3 The good news is that there are many positive steps you can take now that may protect your brain health in the future.

You don’t have to face this alone. Talk to your diabetes care team today to devise a plan for how you can manage your risk.

 

What you should know

To help guide you, here are a few simple facts to know about diabetes and your brain:

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Increased risk

Type 2 diabetes can increase your chance of developing Alzheimer’s or other dementias1-3

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Get tested
If you think that you might have symptoms of Alzheimer’s, talk to your doctor about screening tests

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Early signs
Early changes in memory, thinking or mood are worth paying attention to

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Team support
Talking openly with your healthcare team is a strong first step towards protecting your brain health.

How common is dementia in people with diabetes?

People with type 2 diabetes are 53% more likely to develop Alzheimer’s.1-3 Almost a quarter of people living with Alzheimer’s also have diabetes.4
Often, small changes in memory or thinking appear years before a diagnosis.2 That’s why it’s so important to act now if you notice small changes in memory or clarity of thinking. By discussing it early with your healthcare team and devising a risk management plan, you can make a difference now that may protect your future.

Why diabetes may raise your risk

Diabetes can affect the brain in several ways:2,5,6

Inflamation

It can cause inflammation that makes brain cells less healthy


Blood vessel
damage

High blood sugar, blood pressure, cholesterol, and extra weight can damage tiny blood vessels in the brain


Brain cell function

Changes to the brain’s reaction to high blood sugar can reduce how well brain cells communicate


Alzheimer’s
protein buildup

It may lead to a build-up of proteins called amyloid plaques linked with Alzheimer’s


The hopeful news? The same healthy habits that protect your heart and kidneys (keeping your numbers in range, staying active, and caring for your weight) also support your brain.

Signs to look out for

We all forget things sometimes, but certain changes deserve more attention:7

  • Forgetting recent conversations or events
  • Getting lost in familiar places
  • Finding everyday tasks like medicines or bills more difficult
  • Noticing changes in mood, motivation, or personality
  • Struggling to follow conversations or find the right words
brain

If you notice these changes in yourself or someone you care about, reach out to your doctor. Seeking help early doesn’t mean there’s something “wrong”. It simply gives you the chance to work out a plan with your doctor. Together you can plan how to manage any risk your diabetes might have on developing Alzheimer’s. Knowledge is power and knowing now can empower you to offset any risk identified in the future.

You don’t have to be alone with this, finding a community can help you with your questions and concerns.

Steps to help you take control now

If you’re feeling worried, or if loved ones have noticed changes, please don’t keep it to yourself.
Speaking with your doctor, diabetes nurse, or another healthcare professional early on means you’ll have support at your side. Together, you can explore what’s happening and take steps to care for both your diabetes and your brain health.

References
  1. Zhang J, et al. Diabetes Res Clin Pract. 2017;124:41–47.
  2. Biessels GJ, Despa F. Nat Rev Endocrinol. 2018;14(10):591–604.
  3. Biessels GJ, et al. Lancet Neurol. 2006;5(1):64–74.
  4. Qui W. (2022, August 2). [Poster Abstract] Alzheimer’s Association International Conference, San Diego.
  5. Athanasaki A, et al. Biomedicines. 2022;10(4):778.
  6. Cholerton B, et al. Diabetes Spectr. 2016;29(4):210–219.
  7. World Health Organisation. Dementa fact sheet. Available at: https://www.who.int/news-room/fact-sheets/detail/dementia. Accessed: Sept 2025.

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