When most travelers think of jet lag they picture the groggy, disoriented feeling that follows a long flight. That happens because our circadian rhythm — the internal clock that governs sleep, alertness, digestion and other daily functions — has been disrupted by crossing time zones.
Instead of waiting until you land to address jet lag, begin preparing your body several days before departure. Small, consistent habits help the brain and body adapt more quickly to a new schedule.
“Jet lag isn’t just about time zones; it’s about protecting the brain and the body’s rhythm,” says Dr. Romie Mushtaq, a neurologist who travels extensively. She recommends establishing rituals and routines that signal safety to your nervous system and help recalibrate circadian timing even when crossing multiple time zones.
Individual responses vary, but several science-backed strategies make a measurable difference in how you feel after travel. With a few mindful rituals you can arrive focused, calm and ready to perform. Here are five practical techniques to try.
TIME ZONE SHIFTING
Shift your sleep and wake times gradually toward your destination’s schedule in the days before you leave. Lulu Ge, founder of Elix, suggests beginning about a week ahead for longer trips, while shorter shifts can be done in three to four days. A practical approach is to move your bedtime and wake time by 30 to 45 minutes each day. For larger time changes, add roughly one day of adjustment per hour of time-zone difference so you arrive already close to the local rhythm.
© Vetre Antanaviciute-Meskauskiene | Dreamstime.com
AIRPLANE FASTING
Some travelers abstain from food before and during the flight to help reset circadian cues. Research supports a fasting window of roughly 12 to 16 hours before landing to encourage metabolic re-alignment. Known informally as the Argonne Anti-Jet Lag approach, the idea is to skip in-flight meals and then break your fast after arrival at a meal timed to local hours — even if you aren’t hungry. Choose lighter, bitter or pungent foods for that first meal to avoid sluggishness; examples include arugula, radish, ginger or dandelion greens. Traditional Chinese Medicine notes that bitter flavors help clear travel stress while pungent foods stimulate circulation and energy flow.
HYDRATION
Airplane cabins are extremely dry, and dehydration intensifies fatigue and cognitive fog. To counter this, drink water regularly during the flight and consider electrolytes every four to six hours. Dr. Mushtaq uses a personal rule of hydrating consistently and avoiding alcohol before, during and for the first 12 hours after travel, since even a single drink can interfere with circadian regulation and worsen dehydration. If you need help relaxing before sleep in a new time zone, lower-dose supplements such as magnesium glycinate and a brief melatonin regimen taken 30–60 minutes before target bedtime can be helpful for some people.
© Stocklight Production | Dreamstime.com
SUNLIGHT
Light exposure is the most powerful cue for resetting your internal clock. Resist the impulse to nap immediately after a long flight and instead spend time outside in natural light. Even a short 10-minute walk can help align your sleep–wake cycle with the local day. Resorts and wellness centers often offer gentle morning activities like walks or outdoor stretching to help guests sync to the new timezone. Facing the sunrise and practicing deep diaphragmatic breathing can further anchor your body clock: the combination of bright morning light and intentional breathwork helps regulate melatonin and supports overall circadian adjustment.
IMMUNITY BOOSTS
Travel exposes you to many germs, so proactive immune support can reduce illness-related setbacks that worsen jet lag. Some travelers and clinicians opt for pre-travel nutrient treatments that include vitamin C, zinc, B12 and glutathione to support detoxification and energy. Others begin a short course of adaptogens and medicinal mushrooms three to five days before travel to reduce stress on the circadian system and strengthen immune resilience; commonly used supplements include reishi and Angelica sinensis. Keep a travel-sized immunity supplement handy in your carry-on to take before boarding and again after landing if desired.
Combining these strategies — gradual time-shifting, mindful fasting, rigorous hydration, purposeful light exposure and immune support — creates a practical routine that helps your body adapt faster to new time zones. Experiment to find the mix that suits your physiology and itinerary, and you’ll be more likely to arrive feeling refreshed and ready to enjoy your destination.