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  • Title: Sweet/dessert foods are more appealing to adolescents after sleep restriction.
    Author: Simon SL, Field J, Miller LE, DiFrancesco M, Beebe DW.
    Journal: PLoS One; 2015; 10(2):e0115434. PubMed ID: 25706861.
    Abstract:
    STUDY OBJECTIVE: Examine the effect of experimental sleep restriction (SR) on adolescents' subjective hunger and perceived appeal of sweet/dessert foods versus other foods. A secondary goal was to replicate previous findings on the effects of SR on dietary intake. DESIGN: Randomized cross-over sleep restriction-extension paradigm. SETTING: Sleep was obtained and monitored at home. Outcome measures were gathered during office visits. PARTICIPANTS: 31 typically-developing adolescents aged 14-17 years. INTERVENTIONS: The three-week protocol consisted of a baseline week, followed randomly by five consecutive nights of SR (6.5 hours in bed) versus healthy sleep duration (HS; 10 hours in bed), a 2-night wash-out period, and a 5-night cross-over. MEASUREMENTS: Sleep was monitored via actigraphy. The morning after each experimental condition, teens rated their hunger, underwent a 24-hour diet recall interview, and rated the appeal of a series of pictures of sweet/dessert foods (e.g., ice cream, candy) and non-sweets (meat, eggs, fruits, vegetables). RESULTS: Teens rated pictures of sweet/dessert foods to be more appealing after SR than after HS (Cohen's d = .41, t = 2.07, p = .045). The sleep manipulation did not affect self-reported hunger or the appeal of non-sweet foods (p >.10). Consistent with our prior work, intake of overall calories was 11% higher and consumption of sweet/dessert servings was 52% greater during SR than HS. CONCLUSIONS: Adolescent SR appears to increase the subjective appeal of sweet/dessert foods, indicating a potential mechanism by which SR might contribute to weight gain and the risk for obesity and chronic illness.
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