We’re looking for volunteers to test Restrain, an app designed by our scientists that may help people lose weight and eat more healthily.
The Restrain app, due to be released in spring 2021, is part of a wider research project to test whether different types of ‘brain training’ exercises can help people to lose weight.
The training tasks have already been tested in small groups of people, but now we want to find out whether they work on a large scale with people who are overweight or obese.
If the tasks do work, we want to discover what sort of training works best and who is likely to benefit the most.
The project is the largest of its kind and we want you to be a part of it.
What it involves
The app involves completing different tasks each day.
You also need to weigh in once a week so we can track your progress.
You can participate as much or as little as you like – but the more you do, the better.
Who can take part
To be eligible, you must:
- be over 18 years of age
- have a body mass index of 25 or over (check your BMI on the NHS website)
- not have a history of, or a current, diagnosed eating disorder
- not follow a restrictive diet (eg fruitarian, raw vegan)
- not be pregnant.
Register your interest
If you would like to be involved in the Restrain project, please register your interest by emailing us:
We ask that you only register with your name and email address. Please don’t send any other personal information.
We’ll let you know when the app is ready and where to find it.
Funding and collaborators
This project has been funded by the European Research Council and is a collaborative project between Cardiff University, University of Exeter and Bath Spa University researchers and our app developers, Connect Internet Solutions.
By registering your interest in the Restrain project, you consent to be contacted by researchers directly involved in the project.
All personal information when registering your interest will be deleted once the app has been launched. Please note that separate consent and data policies are in place for the app itself.
We will not use your information for any other purpose and will not share this information with anyone outside of the Restrain project.
If, at any time, you no longer wish to be contacted about the Restrain project, please email us.
Under data protection law, we have to specify the legal basis that we are relying on to process your personal data.
In providing your personal data for this research, we will process it on the basis that doing so is necessary for our public task for scientific and historical research purposes in accordance with the necessary safeguards, and is in the public interest.
The University is a public research institution established by royal charter to advance knowledge and education through its teaching and research activities. Read our charter.
The University is a data controller and is committed to respecting and protecting your personal data in accordance with your expectations and data protection legislation. Read our data protection policy.