CIRCADIAN CHRONOBIOLOGY • SCN MELANOPIC ENGINE

The Circadian Weaver

24-Hour Circadian Phase Clock DRAG SLIDER TO SCRUB
14:00
PEAK COGNITIVE FOCUS
Phase: Ultradian Cognitive Peak II

Core body temperature peaks, reaction time is fastest, and prefrontal cortex dopamine availability supports demanding analytical or creative tasks.

Biometric Chronotype Profile CUSTOM ARCHITECTURE
🌅 The Lark (Early) Dawn riser. Peak focus 8:00 AM, early sleepiness.
🐻 The Bear (Solar) Follows the sun. Balanced focus, consistent 11 PM sleep.
🐺 The Wolf (Night) Late circadian peak. Best work 5 PM – midnight.
🐬 The Dolphin (Light) Fragmented light sleeper. Peak alert mid-morning.
07:00 AM
☀️ Cortisol Awakening Response & Lux 07:00 – 07:45
⚡ Deep Work Sprint I (Ultradian) 09:30 – 11:30
☕ Adenosine / Caffeine Cutoff 13:30 (1:30 PM)
🕯️ Dim Light Melatonin Onset (DLMO) 21:00 (9:00 PM)
🌑 Core Sleep Architecture Window 23:00 – 07:00