Suzanne H. Gage is a British psychologist and epidemiologist who is interested in the nature of associations between lifestyle behaviours and mental health.

Gage is from Missenden, Buckinghamshire, where she completed GCE Advanced Levels in Maths, Biology, Music and English at Dr Challoner's High School.

[5] Her PhD, which she completed at the University of Bristol in 2014, used the Avon Longitudinal Study of Parents and Children to investigate associations of adolescent tobacco and cannabis use with mental health.

[6][4] After her PhD, Gage remained in Bristol as a postdoctoral researcher in Marcus Munafo's Integrative Epidemiology Unit investigating causality in the associations between lifestyle behaviours and mental health outcomes.

[7] Here Gage taught a short course "Appraising Epidemiological Studies" and delivered lectures on Science Communication to MSc psychologists.