Although they can feel similar, jet lag and travel
fatigue aren't the same thing. Travel fatigue is the tiredness that comes from the journey itself. Long hours sitting still, disrupted sleep, airport
stress, dehydration and cramped conditions can all leave you feeling exhausted. It can happen after any long trip – even if you haven't crossed any time zones. The good news is that travel fatigue usually improves after a good night's sleep.
Jet lag, on the other hand, happens when you cross multiple time zones and your body's internal clock is out of sync with the local time. As well as feeling tired, you may struggle to sleep at the right times, feel sleepy during the day, have difficulty concentrating or notice changes in your mood or appetite. These jet lag symptoms can last for several days while your body adjusts to the new time zone. In short:
- travel fatigue = tired from the journey
- jet lag = your body clock is out of sync with the local time
It's also worth remembering that you can experience both at the same time. After a long-haul flight across several time zones, the immediate tiredness from travelling may fade after you've rested, while the effects of jet lag can continue until your body clock has caught up.