The effect of chronotype on emotional memory, sustained attention and stress response. Report Title Polymorphisms of the PER3 gene are associated with extreme circadian rhythm sleep disorders: Advanced Sleep Phase Syndrome (ASPS) and Delayed Sleep Phase Syndrome. PER3 polymorphisms result in either shortened circadian rhythms (as exhibited in ASPS) or extended circadian rhythms (as associated w...

PURPOSE Despite progress in research concerning adolescent and young adult sleep and circadian preferences, several aspects have remained unexamined. This study explored gender and diurnal rhythms in relation to several sleep-related factors: sleep duration, bedtime, wake-up time, tiredness, sleepiness, and optimal subjective sleep duration. METHODS Circadian preferences and sleep were invest...

Recently, it has been suggested that people’s chronotype is involved in regulating food intake and obesity. This study aimed to investigate the association between chronotypes with hormones related to appetite in adults in Tehran. Methods: This cross-sectional study was conducted on 353 men and women aged 18-60 years using convenience sampling in Tehran municipality community centers. Informati...

Associations of eveningness with health hazards benefit from analyzing to what extent the polygenic score for morningness correlates assessments behavioral trait morningness-eveningness and chronotype. With a population-based sample 17,243 Finnish adults, aged 25–74 years, this study examines associations four feasible assessment methods chronotype, a) biological genetic liability based on (PGS...

Background: Lecture attendance is very critical in medical practice. Good sleep hygiene crucial for academic performance. Therefore, this research aimed to assess the relationship between daytime sleepiness and chronotype, skipping classroom.
 Methods: A cross-sectional study was conducted among Students Tabuk from April 2022 July 2022. Three hundred thirty-four students were randomly sele...