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Chronotype Assessment Science

Meaning

Chronotype Assessment Science is the systematic, objective discipline dedicated to identifying and classifying an individual’s innate preference for the timing of sleep and peak activity, ranging from extreme morningness to extreme eveningness. This science employs validated psychometric tools and biological measures, such as the timing of dim light melatonin onset (DLMO), to precisely determine the phase of the internal circadian clock. Accurately assessing an individual’s chronotype is a critical step in personalizing lifestyle recommendations, work schedules, and the timing of therapeutic interventions for optimal health outcomes. Misalignment between chronotype and behavioral schedule leads to chronic circadian disruption.