Research Backed // Peer-Reviewed

The Biology
of the Shift.

Our methodology is built on circadian medicine, metabolic science, and applied recovery physiology. Three pillars. One integrated system. Every protocol is mapped to your roster — not a generic schedule.

CIRCADEX DATA OUTPUT // BIOLOGICAL FACTS
Fact 1.0

Insulin resistance peaks during the biological night, regardless of wakefulness.

Fact 2.0

Cortisol awakening response is blunted in chronic shift workers, impairing morning recovery.

Fact 3.0

Blue-light exposure after 23:00 suppresses melatonin by up to 50% for 90 minutes.

Fact 4.0

Protein synthesis efficiency drops by approximately 20% during the circadian nadir (03:00–05:00).

Fact 5.0

Social zeitgebers — meal times, daylight, alarm clocks — are primary circadian anchors. Misalignment compounds across a 3-day roster.

Circadian Alignment

Managing light exposure and sleep architecture

The circadian clock is entrained by light first, food second. We map your specific roster to identify the precise windows for light exposure, avoidance, and sleep opportunity. No generic blackout curtain advice. A tailored light protocol — morning anchor, evening wind-down, and shift-break management.

Protocol Outputs

  • Light exposure schedule by roster phase
  • Sleep architecture audit (REM/deep ratios)
  • Nap timing and duration by shift type
  • Supplementation timing (melatonin, magnesium)
// Deep-dive research, peer-reviewed citations, and clinical detail — to be added

Metabolic Maintenance

The 3 AM fasting window and bridge meals

Meal timing for shift workers is not about what you eat — it is about when biology allows you to process it. We define your biological eating window, your 3 AM fasting protocol, and your bridge meals: small, low-insulin-load foods that sustain performance without triggering the fat-storage cascade.

Protocol Outputs

  • Roster-mapped eating windows
  • 3 AM bridge meal specification
  • Post-shift recovery nutrition protocol
  • Caffeine taper and cut-off timing
// Deep-dive research, peer-reviewed citations, and clinical detail — to be added

Roster-Specific Recovery

Tactical decompression post-shift

Recovery is not passive. It is the highest-leverage training stimulus available to shift workers. We prescribe decompression protocols for the post-shift window: nervous system down-regulation, sleep-onset acceleration, and a physical training schedule that works with — not against — your biological recovery curve.

Protocol Outputs

  • Post-shift decompression sequence (12–18 min)
  • Training day / rest day mapping by roster
  • HRV-guided intensity adjustment
  • Stress inoculation and parasympathetic reset
// Deep-dive research, peer-reviewed citations, and clinical detail — to be added

Ready to deploy a protocol.

See which service maps these pillars to your specific roster.

Our Services