ArticleScientific reports2017
Latitudinal cline of chronotype.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.
What it found
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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.
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Who cites it
30 citing papers in PubMed.
- Social jetlag in a longitudinal Chinese wearable cohort: weekly variation, solar-time mismatch, and sleep-activity associations.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2026Article
- Chrono-immunotherapy in genitourinary oncology: From emerging evidence to clinical translation (Review).Oncology letters · 2026Review
- Association between chronotype and dual-task gait cost across distinct cognitive domains in healthy young adults.PloS one · 2026Article
- Article
- Determinants of variations in sleep patterns across Brazil: Exploring geographic influences.Sleep medicine: X · 2025Article
- The influence of chronotype, socioeconomic status, latitude, longitude, and seasonality on cognitive performance and academic outcomes in adolescents.Sleep medicine · 2025Article
- Individual associations of self-reported sleep duration, sleep quality, chronotype and social jet lag with infectious disease risk.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Article
- Adaptive introgression in modern human circadian rhythm genes.Npj biological timing and sleep · 2025Article
- Infrared-A to improve mood: an exploratory study of water-filtered infrared-A (wIRA) exposure.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2024Article
- Greater social jetlag predicts poorer NIH Toolbox crystallized cognitive and academic performance in the Adolescent Brain Cognitive Development (ABCD) study.Chronobiology international · 2024Article
- Spatiotemporal light exposure modeling for environmental circadian misalignment and solar jetlag.Environmental epidemiology (Philadelphia, Pa.) · 2024Article
- Archaic Introgression Shaped Human Circadian Traits.Genome biology and evolution · 2023Article
- Chronotype delay and sleep disturbances shaped by the Antarctic polar night.Scientific reports · 2023Article
- Seasonal and Regional Differences in Eating Times in a Representative Sample of the Brazilian Population.Nutrients · 2023Article
- Seasonal Variation of Laboratory Animals as a Consideration for Research Reproducibility.Comparative medicine · 2023Article
- Sleep duration, daytime napping, and risk of peripheral artery disease: multinational cohort and Mendelian randomization studies.European heart journal open · 2023Article
- Morningness/eveningness in gestational diabetes mellitus: clinical characteristics and maternal-neonatal outcomes.Archives of endocrinology and metabolism · 2023Article
- Outdoor daylight exposure and longer sleep promote wellbeing under COVID-19 mandated restrictions.Journal of sleep research · 2022Article
- Article
- Temporal patterns of suicide and circulatory system disease-related mortality are inversely correlated in several countries.BMC psychiatry · 2021Article
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The rotation of the Earth around its own axis and around the sun determines the characteristics of the light/dark cycle, the most stable and ancient 24 h temporal cue for all organisms. Due to the tilt in the earth's axis in relation to the plane of the earth's orbit around the sun, sunlight reaches the Earth differentially depending on the latitude. The timing of circadian rhythms varies among individuals of a given population and biological and environmental factors underlie this variability. In the present study, we tested the hypothesis that latitude is associated to the regulation of circadian rhythm in humans. We have studied chronotype profiles across latitudinal cline from around 0° to 32° South in Brazil in a sample of 12,884 volunteers living in the same time zone. The analysis of the results revealed that humans are sensitive to the different sunlight signals tied to differences in latitude, resulting in a morning to evening latitudinal cline of chronotypes towards higher latitudes.
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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.