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

>Is it because … there is a change in multiple time zones …?

Yes. I can personally attest that flying from Anchorage, AK to San Diego, CA (7 hour flight; 1 time zone) is essentially painless on arrival, while flying Chicago to London (half-hour longer flight; 6 time zones) will leave one shagged out for days.