Scientists define jet lag as the effect on the human body of traveling across different time zones. Our bodies have biological clocks programmed into almost every cell in the body, according to Sofia ...

Jet lag gets a bad rap, but I look forward to those first few days at home after a trip across the pond. I imagine it is how the morning people among us experience life all the time, but for those of ...

Hop a plane across several time zones, and you may end up with what scientists call circadian dysrhythmia (aka jet lag). It’s a temporary sleep disorder where your body’s internal clock isn’t in sync ...