Using Red Light to Improve Metabolism & the Harmful Effects of LEDs | Dr. Glen Jeffery

Overview
This episode explores the profound impact of light on human health, focusing on how different wavelengths influence mitochondrial function, metabolism, vision, and overall well-being. Dr. Glen Jeffery discusses the benefits of long-wavelength light (red, near-infrared, and infrared) and the potential harm caused by short-wavelength light from LED lighting. Practical strategies for optimizing light exposure to improve health and longevity are also shared.

Notable Quotes
- This is an issue on the same level as asbestos. This is a public health issue, and it's big. - Dr. Glen Jeffery, on the dangers of LED lighting.
- Your mitochondria at 9:00 in the morning are not the same as your mitochondria at 4:00 in the afternoon. - Dr. Glen Jeffery, on the circadian rhythm of mitochondrial function.
- If you've got bad mitochondria in one place, they can influence other parts of your body. Mitochondria act as a community. - Dr. Glen Jeffery, on the interconnected nature of mitochondria.

🌞 The Power of Long-Wavelength Light
- Long-wavelength light (red, near-infrared, and infrared) penetrates deeply into the body, improving mitochondrial function by enhancing ATP production and reducing cell death.
- Exposure to red light can improve vision, slow retinal aging, and reduce the progression of diseases like macular degeneration when applied early.
- A study showed that shining red light on a small patch of skin reduced blood glucose spikes by over 20%, demonstrating systemic metabolic benefits.
- Long-wavelength light can pass through clothing and even the skull, positively impacting internal organs and brain health.

💡 The Hidden Dangers of LED Lighting
- LED lights, while energy-efficient, emit a high concentration of short-wavelength light (blue and violet) and lack the balancing red spectrum found in natural sunlight or incandescent bulbs.
- Prolonged exposure to LED lighting has been shown to impair mitochondrial function, increase fat storage, disrupt blood glucose regulation, and even lead to fatty liver in animal studies.
- LED lighting environments may contribute to systemic health issues, including reduced lifespan and increased metabolic dysfunction.

🌳 Bringing the Outdoors Indoors
- Natural sunlight provides a balanced spectrum of light, essential for mitochondrial health. Spending time outdoors, even on overcast days, is critical for well-being.
- Indoor environments can be improved by incorporating incandescent or halogen bulbs, which mimic the full spectrum of sunlight, and by adding plants that reflect infrared light.
- Schools and workplaces should prioritize access to natural light and avoid infrared-blocking windows to mitigate the negative effects of LED lighting.

👁️ Tools for Vision and Retinal Health
- Red light therapy (670nm or higher) for just three minutes can significantly improve color vision and retinal function, with effects lasting up to five days.
- Morning exposure to long-wavelength light is most effective due to the circadian rhythm of mitochondrial activity.
- Early intervention with red light therapy can slow the progression of retinal diseases like macular degeneration, but it is less effective in advanced stages.

🛠️ Practical Solutions for Everyday Light Optimization
- Use halogen or incandescent bulbs in key areas of your home, especially in the morning and evening, to supplement natural light.
- Dim LED lights in the evening and consider using candlelight or low-energy incandescent bulbs to reduce short-wavelength exposure.
- For those in LED-heavy environments, periodic exposure to long-wavelength light devices or natural sunlight can help counteract mitochondrial damage.
- Encourage outdoor activities for children to prevent myopia and support overall health, as close work and screen time under artificial lighting can exacerbate vision problems.