Jet lag threatens to turn even a dream vacation into a slog. And with peak travel season underway, millions of people may have to contend with this disorienting condition, which can cause sleep disturbances, daytime tiredness, headaches and nasty gastrointestinal symptoms. But you can minimise the effects of jet lag — and not just by adjusting your sleep-wake schedule. What and how you eat and drink can make a difference too. Jet lag occurs when your body's biological clock is out of sync with the time zone you find yourself in. Usually, environmental cues such as sunrises and sunsets help set your internal clock. But when you cross time…
