Let There Be Light Series — Volume 1: Foundations of Light and Health

Welcome to the Foundations of Light and Health.

This is the Volume I of the Let There Be Light Series

Part I. Foundations of Light

• Introduction to Light, and the Photoelectric Effect: Everything Alive Is Built to Catch Light

• The Evolution of Light

• Light and Heliotherapy: Sunlight as Medicine

• Light and Energy: What Happens When a Photon Reaches a Cell

• Light and Non-Linear Effects

• Light and the Electromagnetic Spectrum

• Light and Full-Spectrum Sunlight

• Light and the Benefits of Sunlight

Part II. Properties and Components of Light

• Light and Color Temperature: Why the color of the light tells your body what time it is 

• Light and Scattering: What happens to light once it is inside you

• Light and Penetration Depths into the Skin
  

Part III. Wavelengths and Rhythms

• Light Across the Day

  • Dawn and Sunrise

  • UVA and Mid-Morning

  • UVB and Midday

  • Solar Noon and Daylight

  • Sunset and Twilight

  • Evening and Nighttime

  • Moonlight

• Further Breakdown of Wavelengths

  • UV Light (UVA, UVB, UVC)

  • Visible Light Overview

  • Red and Infrared Light, with emphasis on NIR

Part IV. Colors of Light

• Red Light

• Orange Light

• Yellow Light

• Green Light

• Natural Blue Light

• Artificial Blue Light

• Violet and Indigo Light

• Pink Light

Part V. Light in Modern Contexts

• Natural vs. Artificial Light

• Indoor Living and Light Deprivation

• Lighting Regulations and Policy

• Building Design and Health-Centric Architecture

Conclusion

• Light Spectrum and Its Impact on Human Health: Synthesis and Review

• Concluding Remarks and Preview of Future Volumes

• Appendix: Research and References