What is jet lag?

What is jet lag?

Chris Idzikowski (Director of the Edinburgh Sleep Centre) gives expert video advice on: What is jet lag?; How do you overcome jet lag?; Does jet lag affect adults and children in different ways? and more...

Jet lag is the mismatch between what your biological clock is saying and what the outside world is telling you. So if you've traveled, say, three hours eastwards, because a jet plane goes so quickly, the biological clock is still running at your home time, three hours behind.