Part 7/12:
Research highlighted in the episode demonstrates that improper light exposure can have significant effects on stress, learning, memory, and mood regulation. Disruption of the light cycle—like staying indoors during the day or using bright lights late at night—can mimic jetlag, impairing cognitive function and emotional stability.
Jet lag itself can be mitigated by strategic light exposure. To accelerate adjustment to new time zones, morning light in the destination zone can advance the circadian clock, helping synchronize sleep and wake times with local schedules. Conversely, avoiding light exposure at inappropriate times—like avoiding evening light when traveling east—can prevent delays in adaptation.