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Social Jet Lag Weekend Shift

Social jet lag weekend shift is later weekend sleep-wake timing versus weekdays—shrinking the gap reduces Monday fatigue and training drag.

Social jet lag weekend shift is the habit of sleeping and waking much later on Friday and Saturday than on workdays—mimicking eastward travel without leaving home. The gap between weekday and weekend sleep midpoints predicts Monday fatigue, appetite drift, and weaker training.

Shrinking the shift beats heroic Sunday alarms: advance wake by thirty minutes daily and dim lights earlier.

Common questions

  • How much weekend shift is too much?

    Many adults feel drag when sleep midpoint moves more than one to two hours between weekday and weekend. Smaller consistent shifts beat swinging three-plus hours every Sunday night.

Related guide

Jet Lag Nutrition Basics: Meal Timing That Helps Your Body Clock Shift →

Related terms

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