Jet lag is one of the worst parts of long-distance traveling or shift work—it makes us tired and cranky, and also plays havoc ...

You’ve just sat through a 12-hour flight surrounded by screaming babies, barely edible food, and a disappointing selection of in-flight entertainment, but the worst may still lay ahead: jet lag.

Background: Travelling across multiple time zones disrupts normal circadian rhythms and induces “jet lag”. Possible effects of this on training and performance in athletes were concerns before the ...