If you work night shifts, swing shifts, or any schedule that doesn't line up with the sun, this Quick Hit is your sleep playbook. Dr Cois — emergency physician and host of Overheard in the Emergency Room — walks through the evidence-based system he uses for himself and shares with his patients.

You'll learn why shift work nudges your long-term risk of diabetes, cardiovascular disease, and other chronic conditions, and exactly what to do about it. The framework: four circadian behaviours (consistent wake time, daily nervous-system regulation, meal timing, pre-shift exercise) plus three environmental levers (cool room, true darkness, noise control).

Honourable mentions cover sunglasses on the drive home, alcohol, strategic napping, screen light, sleep apnea screening, and how to use wearables without letting them stress you out.

For the deep dive on sleep physiology, the hormone story, and the cohort evidence, listen to Episode 4 of the main season.

Key Takeaways

•  Shift work raises long-term cardiometabolic and chronic disease risk — but the levers to push back are well-defined.

•  Cluster your shifts into blocks rather than scattering one-off nights.

•  Stop eating four hours before sleep; cut caffeine in the second half of your shift.

•  Exercise hard before your shift to manufacture the morning cortisol spike your body would normally produce on a day schedule.

•  Build a daily nervous-system regulation practice — the car meditation is the easiest start.

•  Protect your sleep environment: cool, dark, quiet, and household-aligned.

Chapter Markers

Chapter timestamps are maintained on YouTube as the master version — refer to the YouTube description for a full chapter breakdown.

Disclaimer

Educational purposes only. This podcast does not provide medical advice and does not establish a physician-patient relationship.