Recruiting adults based in the UK with a diagnosis of bipolar disorder and access to a functional smartphone. Participants will be reimbursed for time and travel expenses.

Study participation includes:
-Attending in-person with the researchers at the Royal Infirmary of Edinburgh.
-Using innovative digital technology to monitor your sleep and physical activity.
-Regular online check-ins with the research team.

Participate in a research study looking at the connection between metabolic changes and clinical outcomes for people with severe mental health conditions. Participants must live in Scotland and be 16-35 years old with either a diagnosis of major depressive disorder, bipolar disorder or schizophrenia or no diagnosis.

We are recruiting people with bipolar disorder to measure a range of outcomes related to light sensitivity. This includes measuring the structure and function of the retina, and two overnight stays to measure the response of participants melatonin to light at night.