Building on Human-Centric Lighting, a more specialized field is emerging: lighting designed for specific chronobiological needs. This involves creating light environments that help reset or support non-standard circadian rhythms. Applications include lighting for night-shift workers in factories and hospitals, designed to promote alertness during night hours while minimizing the disruption to their sleep after shifts. Similarly, lighting in senior living facilities is being tailored to combat age-related changes in the eye and circadian system, using higher intensities and specific spectra to improve sleep quality and mood. Schools might implement lighting programs to help adolescents, who have a naturally delayed sleep phase, align better with early school start times. This represents a move from general wellness lighting to targeted, therapeutic lighting interventions based on population-specific biological research.

