What is the Origin of Social Jetlag Mitigation?

The term "Social Jetlag" was coined to describe the phenomenon of shifting sleep schedules between workdays and free days, mimicking the effects of crossing time zones without the geographical travel. "Mitigation" refers to the strategies used to lessen its impact. This concept highlights the conflict between modern social demands and the ancient, deeply ingrained circadian biology that regulates all hormonal cycles.

What is the Mechanism of Social Jetlag Mitigation?

Mitigation primarily involves behavioral changes to reduce the difference between weekday and weekend sleep midpoint times, thereby stabilizing the central circadian pacemaker in the Suprachiasmatic Nucleus (SCN). Light exposure timing, especially minimizing late-night light and maximizing morning light, is a key mechanism used to reinforce the desired circadian phase. Stabilizing the rhythm helps normalize the diurnal variation of cortisol and the nocturnal secretion of melatonin and Growth Hormone.

Social Jetlag Mitigation

Meaning

Social Jetlag Mitigation is the clinical and behavioral strategy aimed at reducing the negative physiological and psychological consequences that arise from a chronic misalignment between an individual’s internal biological clock (chronotype) and their social sleep schedule, typically observed on weekends. Effective mitigation focuses on minimizing the shift in sleep and wake times to maintain circadian rhythm stability. This misalignment is a recognized endocrine disruptor, negatively impacting metabolic and hormonal health.