ArticleJournal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine2018
Sleep Duration Is Associated With Testis Size in Healthy Young Men.
Article in Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02256865 (Hormonal Mechanisms of Sleep Restriction), which is not on this map. Cited by 9 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Hormonal Mechanisms of Sleep Restriction
Who cites it
9 citing papers in PubMed, 20 citations in OpenAlex.
- Clamping Cortisol and Testosterone Mitigates the Development of Insulin Resistance during Sleep Restriction in Men.The Journal of clinical endocrinology and metabolism · 2021Trial
- Lifestyle in flux: urbanization, dietary shifts, and endocrine health in emerging adulthood.Reproductive biology and endocrinology : RB&E · 2025Article
- Association of sleep duration and quality with serum testosterone concentrations among men and women: NHANES 2011-2016.Andrology · 2024Article
- A time for sex: circadian regulation of mammalian sexual and reproductive function.Frontiers in neuroscience · 2024Review
- Sleep and Anabolic/Catabolic Hormonal Profile in Sedentary Middle-Aged Adults: The FIT-AGEING Study.International journal of molecular sciences · 2022Article
- The potential impacts of circadian rhythm disturbances on male fertility.Frontiers in endocrinology · 2022Review
- Sleep and the Testis.Current opinion in endocrine and metabolic research · 2021Article
- Impact of Circadian Desynchrony on Spermatogenesis: A Mini Review.Frontiers in endocrinology · 2021Review
- A Clinical Perspective of Sleep and Andrological Health: Assessment, Treatment Considerations, and Future Research.The Journal of clinical endocrinology and metabolism · 2019Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 3 institutions in 1 country.
Funding
Abstract
STUDY
objectivesSleep is increasingly recognized to influence a growing array of physiological processes. The relationship between sleep duration and testis size, a marker of male reproductive potential, has not been studied.
methodsThis was a preliminary cross-sectional analysis of the baseline data from 92 healthy men (mean ± standard deviation, age 33 ± 6 years, body mass index [BMI] 24.7 ± 6.1 kg/m
resultsSleep duration was correlated with testicular volume (
conclusionsThere is a positive linear and a possible inverse U-shaped relationship between sleep duration and testis volume. Longitudinal or interventional studies manipulating sleep are required to better define causality, and ultimately to establish how much sleep is needed to maximize male reproductive potential. CLINICAL
trial registrationTitle: Hormonal Mechanisms of Sleep Restriction, Registry: ClinicalTrials.gov, Identifier: NCT02256865, URL: https://clinicaltrials.gov/ct2/show/NCT02256865.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.