Jet lag, a common consequence of crossing time zones, can disrupt vacations with symptoms ranging from sleep disturbances and fatigue to headaches and gastrointestinal issues. Experts suggest that strategic eating and drinking habits can significantly mitigate these effects, complementing traditional advice on adjusting sleep schedules.
Jet lag occurs when the body's internal biological clock is out of sync with the destination's time zone. Environmental cues like sunrise and sunset typically help regulate this clock, but rapid travel across multiple time zones can disorient the system. Tara Schmidt, a registered dietitian at Mayo Clinic, noted that severe jet lag has previously impacted her own travel experiences.
To combat jet lag, experts recommend gradually shifting meal times in the days leading up to travel. This involves moving meal schedules in 15-minute increments towards the destination's time zone. Upon arrival, it is advised to immediately adopt the local schedule, eating breakfast, lunch, and dinner at times appropriate for the new location. A hearty breakfast upon waking in the new time zone can aid recovery, according to a 2023 study involving Northwestern University researchers.
During travel and in the initial days of a trip, consuming smaller meals can help prevent gastrointestinal discomfort. Schmidt advised that this is particularly beneficial for individuals with sensitive stomachs or those prone to digestive issues. As the trip progresses, travelers may gradually return to larger meals, being mindful of unfamiliar or high-fat foods.
Alcohol consumption is strongly discouraged as it can disrupt sleep patterns and exacerbate dehydration, which in turn can worsen fatigue and jet lag symptoms. While strategic caffeine use, such as a morning coffee, is acceptable, consuming caffeine too late in the day can interfere with sleep. Both alcohol and caffeine can contribute to dehydration.
Staying hydrated is crucial, especially given the dry air within airplane cabins. Drinking water before, during, and after flights is recommended. At the destination, aiming for approximately eight glasses of water per day is a general guideline, though individual needs may vary based on climate and activity levels. Experts suggest using bottled water if there are concerns about local water safety.
Upon returning home, resuming normal eating and sleeping routines promptly can help re-establish the body's natural rhythm and minimize lingering jet lag effects.