Rebecca's work has focused on constructions of health, illness and the body (including in relation to biomedical, moral, and religious frameworks), health technologies and bodily interactions with the non-human, construction of risk and the future, and anthropology in/of/and public health. She is particularly interested in examining bodily boundaries and the relationships between bodies and environments. Her approach includes attending to materiality and to embedded values and assumptions.

As well as conducting ethnographic fieldwork in Trinidad, Rebecca has worked on a range of different public health and related projects within the UK. Her most recent work has looked at bodies and fluids- what changes when we think of the body as being predominantly made up of fluid. She is currently working on a study of multi-morbidity in London, including how and where distinctions between different conditions are made and by whom, and how 'clusters' of long-term chronic conditions might be situated in relation to place.