Understand the risk factors you can still change
14 modifiable risk factors
Population attributable fractions — Lancet Commission 2024
These are population figures, not personal ones: they estimate how many dementia cases across a whole population might be avoided if a factor were eliminated everywhere. No individual reduces their own risk by 45%. Percentages are weighted to account for overlap between factors, so they sum to 45%. Source: Livingston et al., The Lancet 2024.
How it works
In a few minutes, you'll see how your modifiable factors stack up as a simple 0–100 burden index. It's not a diagnosis or a prediction — it's a structured snapshot you can use to guide conversation and change.
Answer a focused questionnaire
About 5–7 minutes. No exact date of birth. Just the patterns that influence modifiable risk over decades.
See your modifiable burden pattern
We combine your answers into a 0–100 index and domain scores, so you can see where your biggest levers might be.
Use it to guide real-world changes
Take your results to your clinician and focus on one or two changes at a time — in blood pressure, lipids, movement, mood, or other factors that fit your context.