The Red Light Report

Health & Light: The Effects of Natural & Artificial Light on Man & Other Living Things, by John Ott

Jun 12, 2025
Discover the groundbreaking work of John Ott and his exploration of how light influences biological systems. Learn about 'mal-illumination' and its health impacts, while experiments reveal how light conditions affect the sex of fish and chinchillas. Delve into the effects of ultraviolet light on plant cells and the endocrine system. Uncover how sunglasses may disrupt natural UV perception and why embracing full-spectrum sunlight is essential for vitality. This deep dive into light and health will transform your understanding of your environment.
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INSIGHT

Light Wavelengths Impact Biology

  • Different wavelengths of light influence biological processes across plants, animals, and humans significantly.
  • Mal-illumination, or poor light quality, harms health similarly to malnutrition by disrupting natural circadian rhythms.
INSIGHT

Light Affects Sex Determination

  • Light color exposure influences sex determination in fish and chinchillas.
  • Pink light caused most fish to develop as females, showing light's role in hormonal and biological regulation.
ANECDOTE

Chinchilla Breeder's Blue Light Experiment

  • A chinchilla breeder experimented with light to influence offspring sex ratios after poor female yields.
  • Introducing blue light mid-pregnancy led to more female chinchillas, indicating light's prenatal effects.
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