Benefits of napping habits in healthy adults: Maintaining alerting performance and cortisol levels change within 90 min of habitual napping time

Napping is garnering increased attention as a strategy for adults to sustain alertness and alleviate stress in contemporary society. The nuances of napping habits are emerging as an independent factor influencing the extent of individual benefits. This study aimed to demonstrate the long-term benefi...

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Bibliographic Details
Published in:Sleep medicine 2024-07, Vol.119, p.214-221
Main Authors: Lou, Sijia, Hu, Sifan, Chen, Yun, Zhao, Kangqing, Zhou, Yingying, Hou, Jianjun, Liang, Lining, Sun, Hongqiang
Format: Article
Language:English
Subjects:
Adult
Alertness
Attention - physiology
Cortisol
Female
Habits
Humans
Hydrocortisone - analysis
Hydrocortisone - metabolism
Male
Napping habit
Psychomotor Performance - physiology
Reaction Time - physiology
Saliva - chemistry
Self Report
Sleep - physiology
Time Factors
Wakefulness - physiology
Young Adult
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Summary:Napping is garnering increased attention as a strategy for adults to sustain alertness and alleviate stress in contemporary society. The nuances of napping habits are emerging as an independent factor influencing the extent of individual benefits. This study aimed to demonstrate the long-term benefits of napping and explore the impact of napping habits on individual alertness, as well as whether this effect was correlated with cortisol levels. The study involved 80 healthy adults categorized into two groups based on self-reported napping habits: habitual nappers (n = 49) and non-habitual nappers (n = 31). Karolinska Sleepiness Scale (KSS), psychomotor vigilance task (PVT), and saliva collection were performed every 30 min within 90 min in the absence of napping during the afternoon dip. The measurements were analyzed using repeated measures ANOVA and Pearson correlation analyses. There was an interaction between groups and time in reaction speed and lapse number of PVT and cortisol (all p 
ISSN:1389-9457
1878-5506
DOI:10.1016/j.sleep.2024.04.021