In jet lag management, which actions are used?

• A. Light exposure, sleep timing, meal timing, and routine
• B. Only light exposure
• C. Only meal timing
• D. Only sleep timing

Answer: (A)

Jet lag management relies on aligning the body’s circadian rhythms with the new local time by using multiple cues that guide the clock in the same direction. Light exposure is the strongest driver of circadian phase—timing bright light helps shift your internal clock toward the destination time. Sleep timing reinforces this shift by directly syncing when you rest with the new day, so your sleep period becomes aligned with local hours. Meal timing also matters because meals can influence peripheral clocks and metabolic processes, helping to lock in the new schedule alongside the central clock. Maintaining a consistent routine reduces conflicting signals from day to day, supporting smoother and faster adaptation.

Using only one element misses the other signals the body uses to reentrain, so combining light, sleep timing, meal timing, and a stable routine yields the best jet lag relief.