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SAD-Food-Study: Correlation between eating style, seasonal mood fluctuations, and circadian rhythm
About the project
In this project we collected data on eating behavior over the seasons, to determine how eating style relates to seasonal changes of mood and how this interacts with the chronotype, i.e. whether one is a morning or evening person. Data evaluation is ongoing, but we found some interesting results already in several BA theses and a scientific publication as linked below.
Members
- Principal Investigator: Yvonne Höller, University of Akureyri
- Project partner: Richard Eirikur Tähtinen, University of Akureyri
- Master Student: Annick Ulbrich, University of Akureyri
Publications
Journal Articles
- Potthoff, J., Ólafsson, R. P., Zelinski, L., & Höller, Y. (2025). Can self-reported seasonality predict prospectively assessed seasonal changes of self-reported mood, food cravings, body weight, insomnia, and physical activity? Scandinavian Journal of Psychology.
News
- Rúv: Fundu tengsl milli orkudrykkja og skammdegisþunglyndis
- Mbl: Skammdegisþunglyndi? Nei, við tökum svo mikið lýsi
- Fréttablaðið: Kanna tengsl milli matar og árstíðabundinna skapsveiflna
- N4: Hvernig hefur matarræðið áhrif á lundafar?
Student Theses
- Alcohol and sugar consumption : how is alcohol consumption related to craving for sugar?
- Chronotypes, mood and lifestyle : is being an evening type a circadian disorder?
- Does processed food consumption correlate with seasonality and quality of sleep, and how does this relationship change over seasons?
- The relationships between caffeine consumption, seasonality, chronotype, depression, and sleep : a correlational study on self-reported data
- SAD in the summer : symptoms in summer- vs. winter subtype of seasonality
- Seasonal changes of mood, sleep and chronotypes, and the relation to sesonality
- Seasonality and binge drinking : a correlational study : an analysis of seasonality and binge drinking in Iceland in relation to chronotype and age
- Seasonality of sleep and food craving in Iceland
- Symptoms of depression, anxiety, stress, and sleep quality in relation to vegetarian and meat consuming diets