Jet lag or travel fatigue — a nightmare for everyone who flies a long distance and does not want to be like a soulless body half of the holiday. Jet lag can make you sick with insomnia, tiredness, headaches, stomach upsets or irritation. Why is this happening and how to protect yourself as much as possible?
To experience jet lag, you have to travel across multiple time zones. For more sensitive individuals two time zones are enough, but usually you need to cross at least 6 time zones.