To prevent or reduce jet lag during long flights with significant time differences, consider these key fixes:Adjust your sleep schedule: Gradually shift your sleep cycle before your departure to align with your destination’s time zone.Stay hydrated: Drink plenty of water before and after your flight to prevent dehydration.Limit alcohol and caffeine: Avoid excessive alcohol or caffeine consumption during the flight, as they can disrupt sleep.Sleep on the flight: If your journey coincides with nighttime at your destination, try to rest on the plane.Stay active: Perform in-seat exercises to improve circulation.Stay awake until local bedtime: Upon arrival, resist the urge to sleep until the local bedtime to aid in adjusting to the new time zone.Maintain patience: Understand that your body may take a day or two to fully adapt.