The Snooze Button
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The 500-Lux Problem — Dr. Marijke Gordijn
• 44 minCould the lighting in your home or workplace be interfering with your sleep? Chronobiologist Dr. Marijke Gordijn joins Neil Hedley to explore how light influences our biological clocks, why blue light isn't necessarily the enemy, and how changing our everyday lighting habits could improve our sleep. Gordijn is the founder and director of Chrono@Work, a guest researcher at the University of Groningen, and a co-founder of the Good Light Group. In this episode, we explore: The biological clock: What circadian rhythms actually are, and how our bodies keep track of time.The 500-lux problem: Why ordinary indoor lighting may be insufficient during the day.Blue light: Why we need it during the day but should limit it as bedtime approaches.Shift work: The challenges of working while our biological clocks are telling us to sleep.Power naps: Why even a short period of rest may improve alertness.Night owls and creativity: Whether our individual biological rhythms influence when we perform our best.Melatonin: Why timing and dosage matter, and why it isn't necessarily a solution to poor sleep quality.Practical changes: How daylight exposure, evening lighting and screen habits can help support healthy circadian rhythms.GuestDr. Marijke Gordijn Chronobiologist, Founder and Director of Chrono@Work, Guest Researcher at the University of Groningen, and Co-founder of the Good Light Group. ResourcesChrono@Work — Dr. Gordijn's research organization Good Light Group — Practical guidance on healthy lighting University of Groningen — Marijke Gordijn's research profile 2022 Scientific Consensus: Recommendations for Daytime, Evening and Nighttime Light Exposure
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