In her book Incandescent, Anna Levin examines the profound biological and environmental consequences of modern lighting technology. The text blends personal memoir with scientific inquiry, detailing how artificial illumination can trigger severe physical ailments like migraines and nausea in sensitive individuals. Levin explores the historical transition from warm incandescent bulbs to harsher, energy-efficient alternatives, questioning the political and corporate motivations behind these global shifts. By highlighting the intrinsic connection between light and human well-being, the author advocates for a greater appreciation of natural darkness and the rhythms of the sun. Ultimately, the work serves as a critical reflection on how disruptive light is altering our health, our ecosystems, and our relationship with the natural world.