Professor Hay is the Foundation Chair of Mental Health Western Sydney University and Senior Consultant Campbelltown Hospital.
Professor Hay has extensive expertise in longitudinal and epidemiologic studies as well as randomised controlled trials in eating disorders and related mental health problems of young people. She has a unique body of work reporting the point prevalence of eating disorders and their burden in the Australian general population, the only representative population data on eating disorders in Eating disorder features in Aboriginal and Torres Strait Islander peoples, as well as the increase in these problems, concomitant with increases in obesity. Her studies have provided key information to guide jurisdictions in planning health care services for eating disorders across Australia. In 2015 she received the Lifetime Leadership Award from the ANZ Academy for Eating Disorders and in 2013 she was elected Fellow of the (international) Academy for Eating Disorders. In 2014 she was awarded a “Science Without Borders” Visiting Professorship from the CAPES research foundation in Brazil. Her work has also been funded by NHMRC, ARC and Rotary Health. She has over 190 peer reviewed scientific publications. Professor Hay has led the introduction of the first online journal in her research areas (Journal of Eating Disorders). She has extensive community engagement and in addition to service on committees for the International and ANZ AED, she is Deputy Chair of the National Collaboration for Eating Disorders Steering Committee.