Chronobiology in Medicine

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Review Article

June 30, 2026

Circadian Measures and Misalignment in Patients: Toward a Trait-State Framework for Personalized Circadian Intervention

Hyun Woong Roh, Sang Joon Son, Chang Hyung Hong

Chronobiol Med. 2026;8(2):58-64.

Circadian measures are increasingly used in sleep medicine and aging research, but different measures do not capture the same aspect of circadian biology. Chronotype questionnaires, sleep diaries, actigraphy, dim light...

Original Article

June 30, 2026

Effect of Person-Environment-Occupation-Performance (PEOP) Model–Based Sleep Intervention on Sleep Quality Among Parents of Children With Special Needs

Vinitha Lakshmi Ravichandran, Hannah Joy Herbert

Chronobiol Med. 2026;8(2):71-76.

Objective: This study evaluated the effectiveness of a Person-Environment-Occupation-Performance (PEOP) model–based sleep intervention on sleep quality among parents of children with special needs, compared with conventional occupational therapy. Methods: A quasi-experimental...

Original Article

June 30, 2026

Transdiagnostic Modular Sleep Intervention Was Associated With Improved Sleep and Reduced Psychiatric Symptom Severity in Patients With Psychiatric Disorders

Jeong Eun Jeon, Ha Young Lee, Jin Hyuk Yoo, et al.

Chronobiol Med. 2026;8(2):77-86.

Objective: This study aimed to evaluate the preliminary effectiveness of a five-session modular cognitive behavioral therapy for insomnia (CBT-I)– based sleep intervention in psychiatric outpatients presenting with sleep complaints. Methods: Fifty-six...

Original Article

June 30, 2026

The Weight of the Past: History-Dependent Structure in Transitions to Sustained Inactivity

Nikesh Lagun

Chronobiol Med. 2026;8(2):87-97.

Objective: This study aims to evaluate whether short-term behavioral history improves the prediction of transitions into sustained inactivity in continuous rest–activity data beyond the instantaneous activity level alone. Methods: Minute-level wrist...

Original Article

June 30, 2026

Sleep Quality in the Emotional Symptoms and Well-Being of University Students

Johanna Cristina Bocanegra Sandoval, Karen Isabel Avila Labastidas, Ubaldo Rodríguez-de Ávila

Chronobiol Med. 2026;8(2):98-105.

Objective: This study aimed to examine the association between sleep quality and emotional symptoms/well-being in university students. Methods: This analytical cross-sectional study included 297 participants (aged 15–47 years; 70.37% female). Nonparametric...

Current Issue: Volume 8(2); Jun 2026

Is Sleep Enough? Why Circadian Rhythm Matters Beyond Sleep Duration Heon-Jeong Lee Chronobiol Med. 2026;8(2):55-57. Editorial June 30, 2026 Full text PubReader ePub PDF	Circadian Measures and Misalignment in Patients: Toward a Trait-State Framework for Personalized Circadian Intervention Hyun Woong Roh, Sang Joon Son, Chang Hyung Hong Chronobiol Med. 2026;8(2):58-64. Review Article June 30, 2026 Full text PubReader ePub PDF
Drugging the Circadian Clock: Nobiletin, Nicotinamide Mononucleotide, and Resveratrol as Candidate Circadian Amplifiers Fahad Basheer Chronobiol Med. 2026;8(2):65-70. Mini-Review June 30, 2026 Full text PubReader ePub PDF	Effect of Person-Environment-Occupation-Performance (PEOP) Model–Based Sleep Intervention on Sleep Quality Among Parents of Children With Special Needs Vinitha Lakshmi Ravichandran, Hannah Joy Herbert Chronobiol Med. 2026;8(2):71-76. Original Article June 30, 2026 Full text PubReader ePub PDF
Transdiagnostic Modular Sleep Intervention Was Associated With Improved Sleep and Reduced Psychiatric Symptom Severity in Patients With Psychiatric Disorders Jeong Eun Jeon, Ha Young Lee, Jin Hyuk Yoo, et al. Chronobiol Med. 2026;8(2):77-86. Original Article June 30, 2026 Full text PubReader ePub PDF	The Weight of the Past: History-Dependent Structure in Transitions to Sustained Inactivity Nikesh Lagun Chronobiol Med. 2026;8(2):87-97. Original Article June 30, 2026 Full text PubReader ePub PDF
Sleep Quality in the Emotional Symptoms and Well-Being of University Students Johanna Cristina Bocanegra Sandoval, Karen Isabel Avila Labastidas, Ubaldo Rodríguez-de Ávila Chronobiol Med. 2026;8(2):98-105. Original Article June 30, 2026 Full text PubReader ePub PDF

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