Chronic sleep restriction differentially affects implicit biases toward food among men and women: preliminary evidence

Journal of Sleep Research
Anna AlkozeiMonika Haack

Abstract

Chronic sleep restriction and obesity are two major public health concerns. This study investigated how chronic sleep restriction changes implicit attitudes towards low- and high-calorie foods. In a randomized, counterbalanced cross-over design, 17 participants (eight females, nine males) underwent two laboratory testing sessions where they were either sleep-restricted for 3 weeks (i.e. underwent three weekly cycles of 5 nights of 4 h of sleep followed by 2 nights of 8 h of sleep opportunity) or received 3 weeks of control sleep (i.e. 8 h of sleep opportunity per night for 3 weeks). There was evidence for a significant sleep condition x sex interaction (F(1, 20)  = 4.60, P = 0.04). After chronic sleep restriction, men showed a trend towards a significant decrease in their implicit attitudes favouring low-calorie foods (P = 0.08), whereas women did not show a significant change (P = 0.16). Men may be at increased risk of weight gain when sleep-deprived due to a reduced bias towards low-calorie foods.

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Citations

May 20, 2020·Journal of Women's Health·T Rajendra KumarJudith G Regensteiner
Nov 27, 2019·International Journal of Environmental Research and Public Health·Bibi Nabihah Abdul HakimHanafi Damanhuri
Jul 13, 2018·Journal of Sleep Research·Dieter Riemann
Nov 22, 2020·Social Cognitive and Affective Neuroscience·Alessia GallucciGiulia Mattavelli

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