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Research Team

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Jimikaye Courtney, PhD

Principal Investigator

Dr. Courtney is an Assistant Professor in the Department of Exercise and Sport Science at UNC Chapel Hill. She earned her PhD in Human Bioenergetics and her MS in Health and Exercise Science at Colorado State University. She earned her BS in Nutritional Sciences and her BA in Spanish at Oklahoma State University.  Her research focuses on understanding how physical activity and alcohol use behaviors in daily life impact physical and mental health and on developing interventions to promote healthy lifestyle behaviors to improve people’s well-being.

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Emily Kyaw, BS

Second Year Master's Student

Emily earned her BS Ed in Kinesiology from the University of Virginia and is pursuing graduate training for her MA in Exercise Physiology at UNC Chapel Hill. Her current research examines exercise behaviors, motivation, and factors that influence long-term physical activity adherence. With plans to pursue a DPT/PhD, she hopes to develop effective approaches that will enhance engagement in physical activity across a range of populations.

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Collin Stamey, BS

Second Year Master's Student

Collin is originally from Middletown, PA, and received his BS in Genetic and Developmental Biology from The Pennsylvania State University. Collin is currently pursuing an MA in Exercise Physiology at UNC Chapel Hill. He hopes to pursue a career in medicine where he can apply both his clinical and research skills. 

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Emma Hoyt, BA

First Year Master's Student

Emma earned her BA in Psychology and Exercise & Sport Science, with a minor in Neuroscience, from UNC Chapel Hill. With experience as a personal trainer, group fitness instructor, and challenge course facilitator, she brings a strong coaching background to her academic work. Emma is passionate about how movement can improve stress resilience and support mental well-being. Her research centers on how physical activity influences stress responses and contributes to healthier emotional and behavioral outcomes.

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Nadiya Crisano

Undergraduate Student

Nadiya Crisano is a pre-medical, chemistry and Exercise & Sports Science undergraduate at UNC at Chapel Hill. She is an undergraduate research volunteer in the HEAL Lab, where she assists with data collection and supports ongoing research projects. Her academic and research interests center on lifestyle medicine, sports medicine, and the ways behavioral and physiological factors influence health outcomes.

Collaborators

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Paschal Sheeran, PhD

Professor, Psychology and Neuroscience, University of North Carolina at Chapel Hill

Paschal Sheeran is a social psychologist whose research concerns self-regulation – how people direct their thoughts, feelings and actions to achieve their goals. His particular interests are health behavior change and emotion regulation with research on the intention-behavior ‘gap' and the use of implementation intentions to reduce the intention-behavior ‘gap’ and improve rates of performance of health behaviors.

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Melissa Cox, PhD

Assistant Professor, Health Behavior, UNC Gillings School of Global Public Health

Melissa Cox is a behavioral scientist with a program of research centered on the social ecology of youth and young adult alcohol misuse. Her primary focus has been understanding the complex relationships and environments that young people occupy and that shape their alcohol use behaviors. Dr. Cox’s work represents an intersection of public health approaches, principles of developmental science, quantitative methodologies and prevention science. 

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Kurt Ribisl, PhD

Dean, Indiana University School of Public Health - Bloomington

Kurt Ribisl’s primary research interest is evaluating and improving the reach of population-level efforts to reduce tobacco use with a particular emphasis on policy and information technology. He specializes in studying policy issues related to the sales and marketing of tobacco products at the point of sale and on the Internet. He has researched tobacco product marketing, pricing, promotions and youth access as well as use of geographic information systems in tobacco control.

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Marissa Hall, PhD

Associate Professor, Health Behavior, UNC Gillings School of Global Public Health

Marissa Hall's overarching career goal is to design and evaluate evidence-based food, tobacco, and alcohol policies. Much of her research focuses on policies in retail environments, including warning labels, product availability regulation, and marketing restrictions. Dr. Hall applies a range of methodological approaches to explore policy-related research questions, including online experiments, randomized trials, and qualitative research. 

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Genevieve Dunton, PhD

Professor, Population and Public Health Sciences & Psychology, University of Southern California

Genevieve Dunton’s research tries to explain and promote participation in physical activity and healthy dietary behaviors in children, adults, and families. This work is guided by a social-ecological perspective of behavior change, which takes into account the interplay between environmental, social, and individual variables. Her research considers how policy, community, neighborhood, and school contexts can influence physical activity either independently or through their impact on more proximal social and psychological factors.

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Michael Russell, PhD

Associate Professor, Biobehavioral Health, Pennsylvania State University

Mike Russell's research focuses on connections between stress, affect, and health behaviors in the day-to-day lives of adolescents/young adults, using advanced statistical modeling and ambulatory assessment methods.

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Georgiy Bobashev, PhD

Senior Fellow, Data Science, RTI International

Georgiy Bobashev is a Senior Fellow at RTI International with more than 20 years of experience in health research. His current research interests follow two major areas: predictive modeling and studies of substance use and risky behaviors. Dr. Bobashev has applied modeling, statistical analysis and experimental design to a variety of health- and policy-related areas, including substance use, HIV, child/maternal health, influenza, cancer, diabetes, and violent behavior.

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Aiden Chauntry, PhD

Clinical Research Scientist, NIRSense Inc.

Aiden Chauntry is a clinical research scientist whose work focuses on cardiovascular health and physiological monitoring. His research examines how psychological stress, sedentary behavior, and other lifestyle factors contribute to cardiometabolic disease risk. He also investigates how wearable technologies—particularly near-infrared spectroscopy (NIRS) and photoplethysmography (PPG)—can quantify relevant physiological responses in applied and clinical settings. He is especially interested in translating these methods into scalable tools that improve detection and monitoring of cardiovascular compromise in high-risk patients.

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David Conroy, PhD

Professor and Chair, Applied Exercise Science, University of Michigan School of Kinesiology

David Conroy, PhD, is professor and Bickner Chair of Applied Exercise Science at the University of Michigan School of Kinesiology. He is also director of the Motivation Lab and Roybal Center for Promoting Adherence to Behavior Change & Enhancing Cognitive Function. His primary interest involves developing behavioral interventions that target motivational processes to promote health behaviors that enable people to live long, health filled and happy lives. The goal of these interventions is to make healthy lifestyles less effortful and more enjoyable.

Alumni

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Stone Norris, MA

Graduate Research Assistant

Stone earned his BS in Kinesiology at Austin Peay State University where he was a member of the men’s cross country team. At UNC Chapel Hill, he earned his MA in Exercise in Sport Science specializing in exercise physiology and completed a master’s thesis investigating the within-person association between affect and daily physical activity. He is currently living in Colorado Springs, CO and is preparing to attend the University of Tennessee Health Science Center this fall to pursue a DPT degree

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John Garcia

Research Assistant

John earned his BA in Exercise Science and BSPH in Nutrition at UNC Chapel Hill. He currently works on a study examining the environmental causes of liver disease for the Lineberger Cancer Center at UNC Chapel Hill. John is passionate about helping others through lifestyle modifications. He plans to pursue a career in physical therapy where he hopes to apply his learned research skills to improve patient-health outcomes.

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Michaela Sholar

Research Assistant

Michaela graduated with a BA in Exercise and Sports Science with a minor in Anthropology. She is interested in understanding the connection between outdoor physical activity and continuing lifelong activity. She is pursuing a career in physical therapy. She works as a climbing instructor and an outdoor expeditions leader for the university.

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