Stop Using Your Red Light Until You Listen to This with Researcher Dr. Glen Jeffery
Stop Using Your Red Light Until You Listen to This with Researcher Dr. Glen Jeffery
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If you have ever had that quiet nudge that something in your home environment might be working against your health, you are not imagining it. And surprisingly, the culprit might be your lightbulbs.
Dr. Glen Jeffery, a leading light researcher at University College London, is uncovering what our modern light environment is doing to our metabolism, aging, blood sugar, and even our vision. His findings are the kind that make you want to walk through your house and rethink every bulb. The science is new, the implications are big, and the solution is far simpler than you would expect.
This conversation is practical, eye-opening, and honestly a little shocking. If you use red light therapy, LED bulbs, or spend most of your day indoors, this is the episode you need.
What You Will Learn
- Why LED lights are missing the wavelengths your body needs for healthy metabolism
- What NASA discovered when healthy astronauts started showing pre-diabetic markers
- The truth about red light therapy panels and why more is not better
- Why sitting by a window is not the same as going outside
- What the research really says about red light and collagen
- Why timing matters and why red light works best before disease takes hold
- The simple, inexpensive bulb swap that can start rebalancing your light environment today
Timestamps
(0:00) – Introduction: why light is either helping or harming us every day
(2:12) – What’s missing from LED light that your body actually needs (The “Red Gap”)
(4:23) – How LEDs disrupt metabolism, blood sugar, and accelerate aging
(7:13) – Why this story is so fresh and who’s most vulnerable
(9:23) – Do windows protect you? The surprising answer about infrared-blocking film
(10:56) – Why going outside beats sitting by a window every single time
(12:17) – How to use a red light panel correctly (avoiding the “overdose” effect)
(17:22) – Alli’s red light routine: identifying if she is over-exposing herself
(20:43) – Red light masks, open eyes, and what Dr. Jeffery is actually worried about
(24:27) – The red light and collagen myth debunked: Why it’s about energy, not just aesthetics
(25:29) – Why red light therapy works best before disease takes hold
(28:12) – Blue light from devices: less scary than we thought, but still worth managing
(31:48) – The halogen bulb swap: practical, affordable, and backed by real experiments
WATCH ALLI ON YOUTUBE
Links to great things we discussed:
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I hope you loved this episode! 🎉
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Take good care of yourself, and keep showing up with joy. Share this episode with a friend who might enjoy it too!
