Jet lag occurs when the brain cells that regulate our circadian rhythms are out of sync with our time zone. People often experience this when traveling overseas, such as from New York to Paris or Los Angeles to Tokyo. Jet lag can be difficult to overcome, but there are ways.
For starters, the best way to alleviate jet lag is to obtain proper light exposure. This realigns your internal circadian clock to the new time zone. Another trick is to gradually shift your circadian clock to the new time zone a few days before flying. Do this by changing the time of light and dark gradually by one or two hours each day.
One other thing to try to alleviate jet lag is changing your meals to eat on a local schedule before your flight. If it’s lunch time in Tokyo but not where you currently are, break out your lunch box and enjoy your meal.