We are now welcoming participants from Wales.

We are excited to be working with researchers from Cardiff University, led by Professor Ian Jones.

To sign up for the GLAD Study, click here.

About the GLAD Study

The Genetic Links to Anxiety and Depression (GLAD) Study is a research project which aims to explore genetic and environmental risk factors for depression and anxiety. It is led by the National Institute of Health Research (NIHR) Mental Health BioResource and researchers at King’s College London. This is the largest such study and following a successful campaign in England where over 20,000 people joined the study in less than four months, we are now expanding throughout the United Kingdom. We will be doing this in collaboration with researchers at Ulster University, University of Edinburgh, and Cardiff University. This innovative project will greatly add to our knowledge about depression and anxiety and provide valuable information to help improve treatments.

Depression and anxiety are the most common mental health disorders worldwide. In the UK, 1 in 3 people will experience symptoms during their lifetime. The GLAD Study aims to better understand depression and anxiety in order to find effective treatments and improve the lives of people experiencing these disorders.

To take part in the GLAD study, you must:

  • Have experienced clinical anxiety and/or depression during your life
  • Be aged 16 or over
  • Live in the UK

There are 4 simple steps to signing up to the GLAD Study:

  1. Register for the website and read the information sheet
  2. Provide consent
  3. Complete a ~30 minute questionnaire to see if you are eligible
  4. Send a saliva DNA sample through the post

Samples collected from Wales will be stored through the NIHR BioResource research tissue bank in the NIHR National Biosample Centre in Milton Keynes, as well as the National Centre for Mental Health at Cardiff University.    


Professor Ian Jones

Ian is the Wales Principal Investigator. He is a Professor of Psychiatry at the Division of Psychological Medicine and Clinical Neurosciences at Cardiff University. He is also an Honorary Consultant Psychiatrist in Cardiff and Vale NHS Trust. His research interests relate to bipolar spectrum disorders and in particular the relationship of mood disorders to childbirth.


Professor James Walters

James is a Professor of Psychiatry at the Division of Psychological Medicine and Clinical Neurosciences at Cardiff University. He is the Deputy Director of NCMH and an Honorary Consultant Psychiatrist with the Aneurin Bevan University Health Board Early Intervention in Psychosis Service. His research interests centre on treatment-resistant schizophrenia and the genetic causes of schizophrenia and psychosis.