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Wikipedia: Melatonin
Encyclopedia overview of melatonin as a circadian hormone, pineal secretion, light suppression, and exogenous supplement uses—tertiary context for evening dim-light and morning bright-light protocols.
Scope
Covers biosynthesis, SCN–pineal coupling, ipRGC / blue-light suppression themes, and oral melatonin as a drug/supplement topic.
Evidence discipline
Treat quantitative sleep or depression claims as pointers; RCT-grade phase shifts, sleep latency, and evening-spectrum interventions belong to PubMed-linked sources on Circadian-timed light, Evening light hygiene, and Morning light therapy.
Pairing
wikipedia-circadian-rhythm-overview— master clock and zeitgeber framingwikipedia-light-therapy-overview— high-lux bright-light treatment conventions
Outcomes
- Melatonin SuppressionTertiary article summarizes light-driven melatonin suppression and pharmacology themes; controlled effect sizes for evening devices or screens require PubMed RCTs linked from light-hygiene protocols.