Jet Lag occurs when our body's internal circadian clock is misaligned with the time of day. This can can lead to decreased performance, sleep issues, and increased risk for severe health conditions. Christensen et al. used wearables to collect data from over 100 travelers and found people rarely follow the optimal schedules generated through mathematical modeling, but travelers who better followed the optimal schedules reported more positive moods after their trips.
Image credit: Forger et al.