How Artificial Light Undermines Your Liver Health
Update: 2026-01-07
Description
- Your circadian rhythm controls vital organ functions, including how your liver processes nutrients and filters toxins. Exposure to artificial blue light disrupts this rhythm, triggering a chain reaction that destabilizes liver health
- German researchers found that long-term artificial light exposure alters liver gene expression and melatonin production, contributing to the development and progression of fatty liver disease over time
- An earlier controlled animal study showed that constant light combined with a high-fat diet led to more weight gain, insulin resistance, and gut-derived liver inflammation than the same diet under normal lighting
- The circadian disruption caused by artificial light doesn't just affect the liver; it's linked to obesity, Type 2 diabetes, cardiovascular disease, hormone-driven cancers, and higher rates of depression and anxiety
- Simple steps like dimming household lights after sunset, wearing blue-blocking glasses in the evening, and limiting screen time at night can help realign your circadian rhythm and protect your liver
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