Alex Fergus
Alex Fergus
- 2 min read

The Truth About Sunlight, Red Light & Health: Ra Optics Interview

Is more sunlight always better? Ra Optics founder Matt Maruca reveals the truth about the sun, circadian health, and red light therapy innovations you need to know.

The Truth About Sunlight, Red Light & Health: Ra Optics Interview
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Introduction

Is more always better when it comes to sunlight and red light therapy? In this episode, I sit down with Matt Maruca, founder of Ra Optics, to explore the nuance of light and health.

We delve into the balance between sun exposure, risks associated with artificial light, and the innovations Ra Optics is bringing to the light therapy space.

Show Notes

Matt shares why moderation—not extremes—is key when it comes to sunlight, UVA/UVB, and red light therapy. We discuss helio-therapy traditions, why modern environments distort the light spectrum, and how Ra Optics is building innovative products to support circadian health and human biology.

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My team and I have conducted extensive research on the benefits of red light therapy. Be sure to check out the articles on my website. Here's one article: Sun Exposure & Melanoma Risk: The Huge Light Therapy Implications

Key Topics

  • Sunlight: Friend or Foe?
    Matt explains the importance of UVA and UVB for health, but also highlights why excessive sun exposure can prematurely age the skin and lead to oxidative stress.
  • Heliotherapy Lessons from History
    The careful, gradual approach of early doctors to sun therapy, and why slow acclimation still matters today.
  • Environmental Effects on Light
    How concrete, glass, and asphalt reflect harmful wavelengths while absorbing healing ones—and why green environments shift light toward regenerative spectra.
  • Artificial vs. Natural Light
    The dangers of artificial light for eye health, macular degeneration, and circadian disruption.
  • Ra Optics Innovations
    Blue Sync lenses that filter harmful wavelengths while enhancing circadian signals, plus exciting new projects in healthy indoor lighting and red light panels.
  • Red Light Therapy Philosophy
    Why the “more intensity is better” approach is flawed, and how Ra Optics is developing panels with biologically meaningful pulsation frequencies.
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Please join my Facebook group. We have more in-depth discussions there. I hope you’ll join us in the interesting conversations. Members share their ideas, observations, experiences, questions, and review requests. It’s an interactive group!

Resources Discussed

✨ Purchase Ra Optics products, which are designed to protect circadian health and filter harmful wavelengths: https://aferg.co/raoptics , Discount code: LTI for 10% off.

You may like these articles:

⭐ My Sunlight VS Red Light Experiments
⭐ The red light therapy wavelength guide

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