Collegiate athletes must satisfy the academic obligations common to all undergraduates, but they have the additional structural and social stressors of extensive practice time, competition schedules, and frequent travel away from their home campus. Clearly such stressors can have negative impacts on both their academic and athletic performances as well as on their health. These concerns are made more acute by recent proposals and decisions to reorganize major collegiate athletic conferences. These rearrangements will require more multi-day travel that interferes with the academic work and personal schedules of athletes. Of particular concern is additional east-west travel that results in circadian rhythm disruptions commonly called jet lag that contribute to the loss of amount as well as quality of sleep. Circadian misalignment and sleep deprivation and/or sleep disturbances have profound effects on physical and mental health and performance. We, as concerned scientists and physicians with relevant expertise, developed this white paper to raise awareness of these challenges to the wellbeing of our student-athletes and their co-travelers. We also offer practical steps to mitigate the negative consequences of collegiate travel schedules. We discuss the importance of bedtime protocols, the availability of early afternoon naps, and adherence to scheduled lighting exposure protocols before, during, and after travel, with support from wearables and apps. We call upon departments of athletics to engage with sleep and circadian experts to advise and help design tailored implementation of these mitigating practices that could contribute to the current and long-term health and wellbeing of their students and their staff members.
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http://dx.doi.org/10.1177/07487304231207330 | DOI Listing |
Sci Adv
January 2025
Howard Hughes Medical Institute, Brandeis University, Waltham, MA 02453, USA.
Circadian neurons within animal brains orchestrate myriad physiological processes and behaviors, but the contribution of these neurons to the regulation of sleep is not well understood. To address this deficiency, we leveraged single-cell RNA sequencing to generate a comprehensive census of transcriptomic cell types of clock neurons. We focused principally on the enigmatic DN3s, which constitute most fly brain clock neurons and were previously almost completely uncharacterized.
View Article and Find Full Text PDFCJEM
January 2025
Department of Emergency Medicine, Queen's University, Kingston, ON, Canada.
Eur J Appl Physiol
January 2025
Department of Kinesiology, University of North Carolina at Greensboro, Greensboro, NC, USA.
The cortisol awakening response (CAR) is a discrete component of the circadian cortisol profile. Evidence suggests that the CAR is a deviation from the pre-awakening increase in cortisol concentration, although this has yet to be replicated. Therefore, the purpose of this study was to replicate this finding and to investigate further the extent to which the CAR is distinct from the circadian profile.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Afe Babalola University, Ado-Ekiti, Nigeria.
Background: Prolonged exposure to LED-light has been associated with impaired sleep quality and pathogenesis of various diseases, including Alzheimer's Disease (AD). Red light therapy has been indicated as a non-invasive way of reducing anxiety, mood and sleep optimization in neurodegenerative disorders but its endogenous mechanisms are insufficiently comprehended. Hence, we assessed the effects of scheduled red-light exposure on clock genes-Bmal1 and Per 1 expression, feacal boli frequency, and anxiety-like responses in prolonged LED-light exposed rats.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Columbia University, New York, NY, USA.
Background: As high as 50% of Alzheimer's disease (AD) patients experience "sundowning", which refers to an increased severity of neuropsychiatric symptoms (NPS), including agitation, confusion, and anxiety, selectively in the evening. Although sundowning significantly influences the decision to institutionalize patients, few preclinical models of this phenomenon exist and the underlying neural mechanisms are unknown. Here, we establish a model of sundowning by phenotyping the sleep-wake cycle and anxiety and exploratory behavior at different times of day in an AD mouse model.
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