
[254] - How Your Indoor Lighting Is Making You Sick, Fat, and Tired
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Blue light exposure at night disrupts our biology beyond sleep, causing serious health issues that shift workers need to understand and address to protect their wellbeing.
• Blue light isn't actually blue – it's hidden within white light with higher concentrations in whiter light
• Special cells in our eyes detect blue light and signal the brain it's daytime, even when it's night
• Scientific studies show blue light exposure at night causes blood sugar spikes and insulin resistance
• Working under blue-rich lighting doubles snacking compared to blue-free environments
• Blue light suppresses melatonin, which regulates metabolism, protects against cancer, and supports immunity
• Government bans on incandescent bulbs have replaced healthy lighting with harmful blue-rich LEDs
• Health risks include increased diabetes risk, obesity, cancer, inflammation, and mental health issues
• Solutions include morning daylight exposure and blocking blue light after sunset
• Use amber or red lens blue-blocking glasses, not clear "blue filter" lenses
• Switch to warm, low-blue or zero-blue lighting at home after dark
Visit ahealthyshift.com under Resources > Recommended Products for tested blue-blocking tools, glasses, and healthy lighting options.
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Roger Sutherland is Australia's Night Shift & Sleep Specialist and the founder of A Healthy Shift.
After more than 40 years working rotating shifts with Victoria Police, Roger now helps organisations reduce fatigue risk, improve staff wellbeing and build healthier, safer and higher-performing 24/7 workplaces through evidence-based education, circadian biology and the Shift Work Championsâ„¢ Framework.
Shift Work Championsâ„¢: https://join.ahealthyshift.com/shift-work-capability
Website: https://ahealthyshift.com.au
LinkedIn: https://www.linkedin.com/in/roger-sutherland
Instagram: @a_healthy_shift
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Disclaimer: Roger Sutherland is not a doctor or a medical professional. Always consult a physician before implementing any strategies mentioned in this podcast. Use of this information is strictly at your own risk. Roger Sutherland will not assume any liability for direct or indirect losses or damages that may result from the use of the information contained in this podcast, including but not limited to economic loss, injury, illness, or death.
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