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Light Ingestion Protocol

Meaning

A structured, time-specific regimen for controlling the timing, intensity, and spectral composition of light exposure to precisely regulate the body’s master circadian clock. This protocol is a critical non-pharmacological intervention for optimizing the sleep-wake cycle, modulating the diurnal rhythm of cortisol, and ensuring timely melatonin secretion. It involves deliberate exposure to bright light in the morning and rigorous avoidance of blue-spectrum light in the evening, treating light as a potent chronobiological signal that must be “ingested” at the correct time. This is essential for maintaining neuroendocrine rhythmicity.