Päivitetty 07.02.2023

Publications in English


Juuso J. Jussila, Anna Pulakka, Jenni Ervasti, Jaana I. Halonen, Santtu Mikkonen, Sara Allaouat, Paula Salo, Timo Lanki. Scandinavian Journal of Medicine & Science in Sports, 2022: Associations of leisure-time physical activity and active school transport with mental health outcomes: A population-based study.


Promoting physical activity can improve population health. This study aimed to examine associations of leisure-time moderate-to-vigorous physical activity and active school transport with mental health, that is, symptoms of depression and anxiety, among 15- to 16-year-old adolescents. We also assessed the relationships with less-studied outcomes, such as chronic stress and visits to school psychologist. A nationwide Finnish cohort of eighth and ninth graders from the School Health Promotion study (32 829 participants; mean age 15.4 years; 53% girls) was studied. We used logistic regression to estimate odds ratios (OR), with models adjusted for major sociodemographic, health behavior, and physical activity variables. Key findings suggest that leisure-time moderate-to-vigorous physical activity is associated with better mental health in a dose–response manner. Even the smallest dose, 30 weekly minutes, was linked to 17% lower odds of chronic stress symptoms compared to inactivity (OR 0.83, 95% CI 0.71–0.96). Compared to non-active transportation, more than 30 min of daily active school transport yielded 19% (OR 1.19, 95% CI 1.07–1.31) and 33% (OR 1.33, 95% CI 1.12–1.58) higher odds of depression symptoms and school psychologist visits, respectively. However, no associations were found for low-to-moderate daily active school transport levels (<30 min). This large-scale study further highlights a positive association between leisure-time physical activity and mental health among youth. Future research should explore what factors might explain the potential adverse mental health outcomes of active school transport.

Helena Siipi & Polaris Koi, 2021: The Ethics of Climate Nudges: Central Issues for Applying Choice Architecture Interventions to Climate Policy. Cambridge University Press. 1-18.


While nudging has garnered plenty of interdisciplinary attention, the ethics of applying it to climate policy has been little discussed. However, not all ethical considerations surrounding nudging are straightforward to apply to climate nudges. In this article, we overview the state of the debate on the ethics of nudging and highlight themes that are either specific to or particularly important for climate nudges. These include: the justification of nudges that are not self-regarding; how to account for climate change denialists; transparency; knowing the right or best behaviours; justice concerns; and whether the efficacy of nudges is sufficient for nudges to be justified as a response to the climate crisis. We conclude that climate nudges raise distinct ethical questions that ought to be considered in developing climate nudges.