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iDEA: DREXEL LIBRARIES E-REPOSITORY AND ARCHIVES

iDEA: DREXEL LIBRARIES E-REPOSITORY AND ARCHIVES

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Social Jetlag as a Mediator of the Relationship between Chronotype and Body Mass Index

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Title
Social Jetlag as a Mediator of the Relationship between Chronotype and Body Mass Index
Author(s)
Culnan, Elizabeth
Advisor(s)
Kloss, Jacqueline D., 1970-
Keywords
Psychology; Circadian rhythms--Sleep--Body weight; Body mass index
Date
2013-05
Publisher
Drexel University
Thesis
M.S., Psychology -- Drexel University, 2013
Abstract
Circadian factors (e.g., chronotype), have been relatively unexplored in the context of the sleep-weight relationship. Thus, we sought to measure the degree to which chronotype is related to BMI. Furthermore, we aimed to investigate “social jetlag” – the degree of shifting in an individual’s sleep timing practices between workdays and free days – in relation to chronotype, and BMI. We hypothesized that social jetlag would mediate the relationship between chronotype and BMI. Additionally, we proposed that specific health behaviors (e.g., physical activity, junk food consumption, substance use), depressed mood, and adjustment to college might additionally qualify the chronotype-BMI relationship. Findings were discrepant regarding whether or not social jetlag mediates the relationship between chronotype and BMI. Additionally, the specified health behaviors, mood, and adjustment to college did not mediate chronotype and BMI. Future studies should seek to further explore and clarify the relationships among chronotype, social jetlag, and BMI.
URI
http://hdl.handle.net/1860/4225
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