Ethics-approved · Ref TKS280426 · Observational study

14 days. One paired dataset. Something no one has measured quite this way before.

You're invited to help build a first-of-its-kind research record — pairing your continuous glucose data with your daily Yishii signals. Real research, in progress. You're not the audience for the proof. You're part of making it.

Your record — building day by day
CGM + Yishii score
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DAY 01 → DAY 14 · every day you log is a data point the study didn't have yesterday
What this actually is

A real university study — explained without the jargon.

The full title is "Validation of Wearable-Derived Resilience Metrics for Glycaemic Variability Prediction." In plain terms: researchers want to learn how everyday signals from a wearable relate to the small ups and downs in your blood sugar — something standard blood tests miss. Yishii is the technology partner; the University of Nottingham Malaysia runs the science. It's a prospective observational study — nobody changes your life or treats you. We just observe, carefully, for two weeks.

The honest part

Not "proven." Being proven.

Results aren't published yet — that's the whole point. You get to stand at the start of the evidence, not read about it after everyone else. Early, in the room, on the record.

Why it's exciting

Your fortnight becomes signal.

Most people's health data disappears into an app. Yours becomes part of a research dataset that could shape how preventive health works — a small, real contribution to something bigger than a step count.

Can you take part?

The fit is simple.

This study needs people living an ordinary, unmodified lifestyle — so the data reflects real life, not an experiment. Final eligibility is confirmed with study personnel at enrolment.

A generally healthy adult (self-reported)
Not on insulin therapy
Living your normal routine
Alcohol & exercise — totally fine
No special diet or fasting protocol during the study
Not currently managing a diagnosed metabolic condition

The idea is a clean baseline: keep doing you, just without a new diet, cleanse, or biohacking experiment layered on top for the fortnight.

What to expect

Two sides of the same fortnight.

For you

What you get out of it

  • A rare, close-up look at how your own body responds to food, sleep and movement.
  • Your device kit to keep afterwards — CGM sensor kit and your Yishii ring.
  • Continued Yishii companion access as a thank-you (subject to the study's approved terms).
  • The quiet satisfaction of being on the record for real research.
For the research

What we're collecting

  • 14 days of paired data — your CGM glucose readings alongside your daily Yishii score.
  • Meal photos and simple lifestyle logs (sleep, activity) for context.
  • Pre- and post-meal glucose readings, to capture your glycaemic variability.
  • A short questionnaire, and an optional 30–45 min interview if you're up for it.
Your 14 days

A light daily rhythm — that's it.

Nothing about your fortnight should feel like a chore. Wear the kit, live your life, and give the app a few moments a day.

24/7
Wear the kit

CGM sensor and Yishii ring stay on, day and night, for the full 14 days.

DAILY
Sync your Yishii score

Open the app once a day so your score is recorded against your glucose data.

MEALS
Snap your plate

A quick photo of each meal in the app — no calorie counting, no weighing.

±MEAL
Note glucose around meals

A before-and-after glucose reading so the study can see your variability.

Live normally. Go out, train, have a drink, sleep in. The only ask is no new diet or fasting experiment for the two weeks — ordinary life is exactly what the study wants to see.

Onboarding

From "I'm curious" to Day 01.

Register your interest

Tell us a little about you so study personnel can confirm you meet the criteria. A quick eligibility check — no commitment yet.

Read the official information & give consent

You'll receive the University of Nottingham Malaysia's Participant Information Sheet and Consent Form. You only continue once you've read them and consented in writing. This page is a friendly guide — those documents are the real agreement.

Consent runs through UNM's approved forms — not this website

Choose your ring size & colour

Let us know your Yishii ring size, in black or silver. We ship your kit to you.

Get set up

With study personnel, apply your CGM sensor and pair your Yishii ring. We'll walk you through the app so Day 01 starts smoothly.

Live your 14 days

Wear the kit, sync daily, snap your meals, note glucose around meals — and otherwise carry on as normal.

Wrap up & share your experience

Complete the short questionnaire, and the optional interview if you'd like. Then your two weeks of data joins the study.

Keep the kit

Your devices are yours to keep, with continued Yishii access as our thank-you — subject to the study's approved terms.

Your data, your rights

Handled like research, not marketing.

Your privacy is governed by the University's formal policies, the UK GDPR and Malaysia's Personal Data Protection Act 2010 — and by a data-sharing agreement between the University and Yishii (Signsbeat Pte Ltd).

Confidential

Anything that leaves the research unit is de-identified. Your data is pseudonymised, stored securely, and access is restricted to authorised research team members.

Never for marketing

Identifiable data is used strictly for this study — never for marketing, commercial targeting, or any non-research purpose.

Yours to control

You can access, correct or request erasure of your data, and withdraw your consent at any time — no reason needed, no consequence.

This is a minimal-risk study: the main possible discomfort is mild, temporary skin irritation from a sensor. No invasive procedures, no treatment. If you ever feel unwell, please seek medical care as you normally would.

Common questions

Before you raise your hand.

Can I still drink alcohol and exercise? +

Yes. Live your normal life — that's the point. The only ask is no new diet or fasting protocol during the two weeks.

Does the CGM hurt? +

The sensor sits on the skin and is designed to be worn continuously. The most common issue is mild, temporary skin irritation. It's a minimal-risk study.

Who sees my data? +

Only the authorised research team, and in de-identified form. Anything published or shared for science has identifying details removed.

Can I quit partway through? +

Anytime, without giving a reason and without any consequence. Participation is entirely voluntary.

Do I get to keep the ring? +

Yes — your device kit is yours to keep afterwards, with continued Yishii access as a thank-you, subject to the study's approved terms.

Ready?

Be on the record for something real.

Register your interest and study personnel will be in touch to confirm eligibility and share the official information and consent forms.

Questions or complaints

Talk to the people running it.

Lead investigator
Mr Tan Kien Sin
kiensin.tan@nottingham.edu.my
Ethics committee (FOSE FRIREC)
FOSE.FRIREC@nottingham.edu.my
Technology & operations partner
Yishii — Signsbeat Pte Ltd
Recruitment, scheduling & device support