Summary
This review traces circadian clock development and regulation from embryonic life through old age, highlighting how light-driven entrainment needs differ at each life stage. Practical implications include tailoring lighting interventions for neonates, adolescents, and elderly populations to support circadian health, reproductive function, and longevity.
Key Findings
- Circadian clocks develop progressively: fetal clocks are entrained by maternal signals, mature postnatally, shift delayed during adolescence, and decline in amplitude and robustness with aging.
- Sex differences in circadian regulation are substantial, with reproductive hormones acting as major modulators of clock gene expression and chronotype across the lifespan.
- Chronobiological interventions (e.g., timed light exposure, meal timing) are proposed as viable medical strategies to counteract age-related circadian deterioration and associated metabolic and cognitive decline.
- Puberty and adolescence are associated with a well-documented phase delay in circadian timing, with implications for sleep scheduling in schools and workplaces.
Categories
Sleep & Circadian Health: Reviews how circadian clock development and regulation change across the human lifespan, from embryonic development through aging.
Student Learning: Covers circadian changes during puberty and adolescence with implications for youth health and scheduling.
Dementia & Elder Care: Discusses circadian clock deterioration with aging and potential medical applications relevant to elder care.
Author(s)
I Olejniczak, V Pilorz, H Oster
Publication Year
2023
Number of Citations
10
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