The Health Lottery: illusion of control example

What to steal

If the outcome is chance, say chance on the same screen as the picker. This page says “GET A CHANCE AT £25K”.
Offer a quick pick beside “play numbers”, so choosing is optional.

What to test next: “Play numbers” beside “Quick Pick” vs Quick Pick only. Measure plays started and whether people open Healthy Play.

In plain words

Why it works

The Health Lottery uses the illusion of control: picking the numbers yourself can make a chance result feel more like skill (Langer 1975). Under “Health Lottery Games”, a bar labelled “Play The Big Win” shows empty circles, a “Quick Pick” button and a “Play numbers” button. The hero says “Have a Big Win Thursday draw” and “GET A CHANCE AT £25K”. On the photo, a badge reads “FEELING LUCKY?” and “GET IN THE DRAW”, beside “£25K COULD BE YOURS!”. The other poster says “WIN UP TO £25,000”. “HEALTHY PLAY” is in the menu. The odds of Quick Pick versus choosing numbers are not on this screen. Whether picking numbers changes how often people play is not public.

Honest nudge or dark pattern?

Conditional

Conditional: the page calls the draw a chance and puts “HEALTHY PLAY” in the menu, but this screen does not show the odds, and “£25K COULD BE YOURS!” sits on the same photo as the number picker.

Sources: Captured by Nudgeswipe, 4 Nov 2026 (UK homepage, logged out)

Context

The Health Lottery homepage, logged out, on 4 Nov 2026. No cookie banner was on the capture. The menu also lists Play, Results, Offers and Good causes.

The research

The research behind it

● Strong evidence (provisional) · More on illusion of control, with sources →

Next: run it on your product

Try it on your own product

Opens your assistant with this teardown, our verdict and the steps above. It asks about your product first, then suggests tests you can run.

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You are helping me apply a behavioural-design pattern ethically.

Pattern: The Health Lottery: The Health Lottery lets you Quick Pick or play your own numbers
Bias: Illusion of control: We overestimate how much we can influence outcomes that are largely down to chance.
Why it nudges: The Health Lottery uses the illusion of control: picking the numbers yourself can make a chance result feel more like skill (Langer 1975). Under “Health Lottery Games”, a bar labelled “Play The Big Win” shows empty circles, a “Quick Pick” button and a “Play numbers” button. The hero says “Have a Big Win Thursday draw” and “GET A CHANCE AT £25K”. On the photo, a badge reads “FEELING LUCKY?” and “GET IN THE DRAW”, beside “£25K COULD BE YOURS!”. The other poster says “WIN UP TO £25,000”. “HEALTHY PLAY” is in the menu. The odds of Quick Pick versus choosing numbers are not on this screen. Whether picking numbers changes how often people play is not public.
Our verdict: Conditional. Conditional: the page calls the draw a chance and puts “HEALTHY PLAY” in the menu, but this screen does not show the odds, and “£25K COULD BE YOURS!” sits on the same photo as the number picker.
Source page: https://nudgeswipe.com/examples/health-lottery-quick-pick-or-play-numbers/ (JSON: https://nudgeswipe.com/api/teardowns/health-lottery-quick-pick-or-play-numbers.json)

Rules: say a brand "uses" a tactic, never that it "worked"; outcomes are not public unless the company published them; no invented uplift estimates; flag mixed evidence. Honest nudge = true, visible, easy to reverse, and in the user's interest. Dark pattern = hides costs, fakes scarcity or popularity, shames, or makes leaving harder than joining. Quote company-published results as "X reports", with the source link, and don’t generalise them. Don’t cite retracted or failed-to-replicate studies as support (e.g. Ariely & Wertenbroch 2002). Don’t state study figures unless they’re on this page or in a source you can link. If an idea crosses the line, link the matching deceptive.design pattern.

Tasks:
1. Ask me for my product, the flow (URL or screenshots) and the goal.
2. Audit where this pattern already appears, or could, in that flow.
3. Propose 2-3 ethical experiments: hypothesis, variant copy or UI, primary metric, and a guardrail metric (refunds, complaints, cancellations).
4. Flag every dark-pattern risk and say how to stay on the honest side.

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Sources

Our capture of healthlottery.co.uk, 4 Nov 2026
Langer (1975), The illusion of control. doi.org/10.1037/0022-3514.32.2.311
Captured by Nudgeswipe, 4 Nov 2026 (UK homepage, logged out): healthlottery.co.uk

The Health Lottery lets you Quick Pick or play your own numbers

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Why it works

Conditional

The research behind it

Try it on your own product

5 new nudges, every Friday