Sunglasses, sunscreen, contact lenses, tanning beds, and prescription glasses are all man made inventions that, intentionally or not, disrupt the body’s circadian hormetic system What once evolved to calibrate itself precisely through full spectrum sunlight is now constantly interfered with by synthetic barriers and distortions The immediate impact of these inventions is obvious Altered light input to the eyes and skin, disrupted circadian signaling to the brain, and changes in how the human body interact with UV, infrared, plus the rest of the spectrum But it’s the second and third order consequences that are truly devastating, and largely invisible to the average person When you distort the timing, spectrum, or intensity of light reaching the body, you alter hormonal rhythms, neurotransmitter balance, mitochondrial redox states, and even genetic expression through light responsive pathways Over years, this leads to downstream issues in metabolism, fertility, mood regulation, sleep quality, and immune function What seems like a simple convenience, a pair of sunglasses or daily sunscreen, compounds over time into chronic, systemic circadian disruption

You’re playing with fire when you expose yourself to isolated UV light without the natural balancing forces of red and infrared wavelengths that are always present in full spectrum sunlight. Stripping UV away from its biological context disrupts the protective and regenerative mechanisms that evolved to handle it.