Chronobiology International

Aims & Scope

Chronobiology International is the journal of biological and medical rhythm research.

It is a transdisciplinary journal focusing on biological rhythm phenomena of all life forms.

The journal publishes groundbreaking articles plus authoritative review papers, short communications of work in progress, case studies, and letters to the editor, for example, on genetic and molecular mechanisms of insect, animal and human biological timekeeping, including melatonin and pineal gland rhythms.

It also publishes applied topics, for example, shiftwork, chronotypes, and associated personality traits; chronobiology and chronotherapy of sleep, cardiovascular, pulmonary, psychiatric, and other medical conditions.

Articles in the journal pertain to basic and applied chronobiology, and to methods, statistics, and instrumentation for biological rhythm study.

View Aims & Scope

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Metrics & Ranking

Impact Factor

Year	Value
2025	1.7
2024	2.20

Journal Rank

Year	Value
2024	7347

Journal Citation Indicator

Year	Value
2024	1095

SJR (SCImago Journal Rank)

Year	Value
2024	0.754

Quartile

Year	Value
2024	Q2

h-index

Year	Value
2024	123

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Abstracting & Indexing

Journal is indexed in leading academic databases, ensuring global visibility and accessibility of our peer-reviewed research.

• Scopus
• Google Scholar
• Web of Science
• Medline

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Subjects & Keywords

Journal’s research areas, covering key disciplines and specialized sub-topics in Biochemistry, Genetics and Molecular Biology and Medicine, designed to support cutting-edge academic discovery.

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Most Cited Articles

The Most Cited Articles section features the journal's most impactful research, based on citation counts. These articles have been referenced frequently by other researchers, indicating their significant contribution to their respective fields.

• Social Jetlag: Misalignment of Biological and Social Time

  Citation: 2041

  Authors: Marc, Jenny, Martha, Till

• Circadian Typology: A Comprehensive Review

  Citation: 1062

  Authors: Ana, Simon N., Maria Paz, Lee, Vincenzo, Christoph

• ETHICS AND METHODS FOR BIOLOGICAL RHYTHM RESEARCH ON ANIMALS AND HUMAN BEINGS

  Citation: 1029

  Authors: Francesco, Michael H., Yvan

• Melatonin Shifts Human Orcadian Rhythms According to a Phase-Response Curve

  Citation: 561

  Authors: Alfred J., Saeeduddin, Jeanne M. Latham, Robert L.

• INFLUENCE OF CIRCADIAN TIME OF HYPERTENSION TREATMENT ON CARDIOVASCULAR RISK: RESULTS OF THE MAPEC STUDY

  Citation: 480

  Authors: Ramón C., Diana E., Artemio, José R.

• Bright Light Therapy: Improved Sensitivity to Its Effects on Rest-Activity Rhythms in Alzheimer Patients by Application of Nonparametric Methods

  Citation: 473

  Authors: Eus J. W., Dick F., Christopher C., Wayne, W. Vaughn, Peter B.

• Depression Scores Associate With Chronotype and Social Jetlag in a Rural Population

  Citation: 447

  Authors: Rosa, Giovana, Luciana Carvalho, Wolnei, Iraci, Till, Maria Paz Loayza, Karla Viviani

• GENDER DIFFERENCES IN MORNINGNESS–EVENINGNESS PREFERENCE

  Citation: 430

  Authors: Ana, Vincenzo

• Circadian Rhythms in Sports Performance—an Update

  Citation: 423

  Authors: B., J., G., B., T.

• Comparison of the Munich Chronotype Questionnaire with the Horne‐Östberg's Morningness‐Eveningness score

  Citation: 408

  Authors: Andrei, Marijke C. M., Domien G. M., Serge, Till

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