The Real Truth About Health Free 17 Day Live Online Conference Podcast Infrared, UV, and the overlooked power of sunlight
Mar 23, 2026
A lively deep dive into infrared's hidden role in repair and metabolic heat. They explore how sky color and blue light signal UV presence. Seasonal and latitudinal limits of UVB and its outsized biological impact get attention. The balance between visible, infrared, and ultraviolet sunlight is highlighted as a crucial environmental factor.
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Sunlight Drove Early Evolutionary Cycles
- Sunlight acted as a constant evolutionary force driving cycles of energy intake, temperature delta, and biochemical change.
- Wunsch explains day/night spectral swings powered crystallization and dissolution that propelled early life at land-water interfaces.
Visible Light Is Life's Primary Energy Input
- Visible light is the main high-energy input organisms use and biological reactions convert that shortwave energy into longwave thermal output.
- Wunsch notes life's thermodynamic end point is emission around 8,000–12,000 nm as body and planetary heat.
Sky Color Encodes Daytime Signals
- Organisms read sky color to signal environmental phase changes like dawn, noon, and dusk, linking color cues to temperature and activity shifts.
- Wunsch links blue sky to daytime conditions and red sky to transitions like sunrise or sunset.