Eli5: how can a 14-15 hours flight trip can make you feel jet lagged but even a long 20 hours train journey doesn’t have the same effect?

Question

Is it because typically during these long flights there is a a change in multiple time zones and that messes your circadian rythm?

In: 541

Answer 1

The US Navy has done a lot of research on flight fatigue, and a lot of it comes down to the tiny stabilization movements we are constantly making while in flight. These tiny muscle movements add up, and contribute significantly to the overall feeling of fatigue after a flight.