Our Team

HEARTY lab members
Join our team!

Nhung Nguyen, PhD

Principal Investigator

Dr. Nguyen is a behavioral scientist and an Assistant Professor of Medicine at UCSF. She founded and leads the HEARTY lab. Her work centers on preventing and reducing the co-use of tobacco and cannabis among diverse populations. Dr. Nguyen has been receiving research funding from the California Tobacco-Related Disease Research Program (TRDRP) and the National Institutes of Health (NIH)/National Institute on Drug Abuse (NIDA). Currently, she is a Principal Investigator (PI) in two projects that harness mobile health technology and machine learning to investigate real-time predictors of tobacco and cannabis vaping behaviors and to develop smartphone-based interventions to reduce the co-use of these substances among young adults.



Christine Tran, BS

Research Coordinator

Christine Tran received her BS degree with a major in Health Science from California State University, East Bay. Her research interest includes exploring how to leverage technology in healthcare to achieve health equity and reduce health disparities. She has worked on a project in increasing access to and satisfaction with end-of-life care among minorities and volunteered as a Program Coordinator for the UCSF Orthopedic Trauma Institute Junior Academy Mentorship Program. Her skills include coding qualitative data, conducting user experience interviews, and using Canva to create infographics, message designs, and advertisements. Her ideal day is doing jigsaw puzzles or building Legos, with a cup of iced hojicha latte and her favorite music playing in the background.




Deanna Halliday, PhD

Postdoctoral Scholar

Deanna M. Halliday, PhD, received her doctorate in Psychological Sciences (Health Psychology) from the University of California, Merced. Prior to joining the CTCRE, she was awarded a TRDRP pre-doctoral fellowship for her dissertation work on tobacco and cannabis co-use. Her work examines the multi-level factors that contribute to tobacco and cannabis use spanning from internal psychological factors to social and community-level factors. Dr. Halliday hopes to further explore the phenomena of co-use in under-resourced, rural, or otherwise vulnerable communities.

Vuong Do, PhD 

Postdoctoral Scholar 

Vuong Do received his doctorate in Public Health (Epidemiology) from the School of Public Health, Georgia State University. He is a postdoctoral fellow at the Center for Tobacco Control Research and Education, UCSF. As a postdoctoral fellow at the CTCRE, he examines tobacco and cannabis co-use patterns among young adults, risk perceptions, and contextual factors to inform cessation programs. In addition, he is interested in studying tobacco and cannabis use and health disparities among racial/ethnic minority groups.