Sleep
Chronotherapy Light Dose
Chronotherapy light dose is timed bright-light exposure—lux and minutes matched to shift circadian rhythm for jet lag, shifts, or seasonal sleep.
Chronotherapy light dose is the calibrated lux and minutes of bright light used to shift circadian phase—morning for delayed schedules, evening for advanced sleepers under guidance. Ten thousand lux lamps for twenty to thirty minutes are common; outdoor sun counts.
Wrong timing worsens insomnia.
Common questions
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Can outdoor light replace a therapy lamp?
Yes—morning outdoor light often delivers enough lux. Lamps help cloudy climates or offices without sun access; match timing to your phase-shift goal.
Related terms
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