Sensation seeking, drinking motives, and going out mediate the link between eveningness and alcohol use and problems in adolescence
Chronobiol Int. 2023 Sep 18:1-11. doi: 10.1080/07420528.2023.2256396. Online ahead of print.ABSTRACTThe present study was aimed at obtaining a more comprehensive understanding of the possible mediating factors in the morningness-eveningness → alcohol consumption relation. We explored the role of mediators such as sensation seeking, the frequency of going out in the evenings, and drinking motives. We tested the proposed mediation model via structural equation modeling based on cross-sectional research conducted among Hungarian adolescents and young adults (N = 1695, 42.5% male, Mage = 18.98, SDage = 1.89). The outcomes in...
Source: Chronobiology International - September 18, 2023 Category: Biology Authors: Adrien Rig ó Istv án Tóth-Király Anna Magi Andrea Eisinger Zsolt Demetrovics R óbert Urbán Source Type: research
Intraindividual variability in sleep duration and college degree attainment
The objective of the current study was to examine the relationship between sleep characteristics and college degree attainment. Participants were 968 college students (72% female; mean age 19.7 [1.7]). Participants completed a psychosocial and sleep questionnaire battery followed by one week of daily sleep diaries. Academic degree completion data was obtained from the university registrar 10 years later. Logistic regression examined whether mean and variability in sleep duration and sleep efficiency and insomnia symptoms predicted degree attainment, adjusting for age, gender, semester, grade point average (GPA), and percei...
Source: Chronobiology International - September 18, 2023 Category: Biology Authors: Jessica R Dietch Alisa Huskey Ian O Dadeboe Danica C Slavish Daniel J Taylor Source Type: research
Early-to-mid pregnancy sleep and circadian markers in relation to birth outcomes: An epigenetics pilot study
Chronobiol Int. 2023 Sep 18:1-11. doi: 10.1080/07420528.2023.2256854. Online ahead of print.ABSTRACTMaternal sleep and circadian health during pregnancy are emerging as important predictors of pregnancy outcomes, but examination of potential epigenetic mechanisms is rare. We investigated links between maternal leukocyte DNA methylation of circadian genes and birth outcomes within a pregnancy cohort. Women (n = 96) completed a questionnaire and provided a blood sample at least once during early-to-mid pregnancy (average gestation weeks = 14.2). Leukocyte DNA was isolated and DNA methylation (average percent of methylation) ...
Source: Chronobiology International - September 18, 2023 Category: Biology Authors: Erica C Jansen Kelvin Pengyuan Zhang Dana C Dolinoy Helen J Burgess Louise M O'Brien Elizabeth Langen Naquia Unwala Jessa Ehlinger Molly C Mulcahy Jaclyn M Goodrich Source Type: research
Association between circadian clock gene expressions and meal timing in young and older adults
In this study, we investigated the relationship between clock gene expression and meal timing in young and older adults. In this cross-sectional study, we enrolled 51 healthy young men and 35 healthy older men (age, mean±standard deviation: 24 ± 4 and 70 ± 4 y, respectively). Under daily living conditions, beard follicle cells were collected at 4-h intervals over a 24-h period to evaluate clock gene expression. Participants were asked to record the timing of habitual sleep and wake-up, breakfast, lunch, and dinner. From these data, we calculated "From bedtime to breakfast time," "From wake up to first meal time," and "F...
Source: Chronobiology International - September 18, 2023 Category: Biology Authors: Masaki Takahashi Mayuko Fukazawa Yu Tahara Hyeon-Ki Kim Kumpei Tanisawa Tomoko Ito Takashi Nakaoka Mitsuru Higuchi Shigenobu Shibata Source Type: research
Is implementing a post-lunch nap beneficial on evening performance, following two nights partial sleep restriction?
Chronobiol Int. 2023 Sep 18:1-18. doi: 10.1080/07420528.2023.2253908. Online ahead of print.ABSTRACTWe have investigated the effects that partial-sleep-restriction (PSR0, 4-h sleep retiring at 02:30 and waking at 06:30 h for two consecutive nights) have on 07:30 and 17:00 h cognitive and submaximal weightlifting; and whether this performance improves at 17:00 h following a 13:00 h powernap (0, 30 or 60-min). Fifteen resistance-trained males participated in this study. Prior to the experimental protocol, one repetition max (1RM) bench press and back squat, normative habitual sleep and food intake were recorded. Participants...
Source: Chronobiology International - September 18, 2023 Category: Biology Authors: Chloe Gallagher Chloe E Green Michael L Kenny Jessie R Evans Glenn D W McCullagh Samuel A Pullinger Ben J Edwards Source Type: research
