Outside aula medica

Callum Regan


I am a PhD student in the field of public health and epidemiology, with a focus on physical activity and health. I want to promote healthy lifestyles across all ages and reduce the burden of NCDs.

Om mig

My previous work investigated the associations between diet quality and health-related quality of life in adolescents. I am now focusing on how the time we spend in daily movements is associated with non-communicable diseases and the feasibility of using mobile app services to promote healthy lifestyle behaviours.

I aspire to make an impact in reducing the significant burden that non-communicable diseases have on our society and help to achieve good health and well-being as part of the 17 sustainable development goals laid out by the United Nations.



The first part of my research will be investigating the associations between time spent in physical activity, sleep and sedentary behaviour and various non-communicable diseases, using objective measures and data from cohort studies. This is part of the OPTIMIST project within the "Physical activity and Sports medicine with focus on prevention" research group. This work aims to help the development of recommendations for daily behaviours linked to health.  

The second part of my research will investigate the perceptions of participants using an app and digital service to promote healthy lifestyle behaviours. This will focus on the general population within a real-life setting and will provide an insight into the feasibility of such a service to help people achieve their healthy lifestyle goals. This will be in collaboration with the company LongLifeActive and Sophiahemmet Högskola.




Cell Biology BSc, The University of Stirling

ERASMUS exchange, Tübingens universitet

Nutrition Science MSc, Karolinska Institutet 

Akademiska priser och utmärkelser


Acute effects of nitrate and breakfast on working memory, cerebral blood flow, arterial stiffness, and psychological factors in adolescents: Study protocol for a randomised crossover trial

Investigation of the Associations between Diet Quality and Health-Related Quality of Life in a Sample of Swedish Adolescents. Callum Regan, Hedda Walltott, Karin Kjellenberg, Gisela Nyberg and Björg Helgadóttir. Nutrients 2022 Jun 15;14(12):2489. doi: 10.3390/nu14122489.

Proteogenomic Analysis of Epibacterium Mobile BBCC367, a Relevant Marine Bacterium Isolated From the South Pacific Ocean. Sabine Matallana-Surget, Johannes Werner, Ruddy Wattiez, Karine Lebaron, Laurent Intertaglia, Callum Regan, James Morris, Hanno Teeling, Manuel Ferrer, Peter N. Golyshin, Dimitrios Gerogiorgis, Simon I. Reilly and Philippe Lebaron. Front. Microbiol. 9:3125. doi: 10.3389/fmicb.2018.03125