Skip to main content

Light Hygiene Protocols

Meaning

Light Hygiene Protocols are structured, deliberate practices focused on managing an individual’s exposure to specific wavelengths and intensities of light throughout the 24-hour cycle to optimize circadian rhythm and hormonal balance. These protocols involve maximizing exposure to bright, blue-rich light during the day to promote alertness and suppressing blue light exposure in the evening to facilitate the natural secretion of melatonin. The clinical objective is to reinforce the master biological clock in the suprachiasmatic nucleus, which in turn regulates sleep quality, mood, and metabolic processes.