Jet lag is worse and longer-lasting when you travel east than west.
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So, for that New York to London flight we mentioned earlier, you'd be crossing five time zones, so it could take you about five days to adjust. However, research in rodents suggests the liver, lungs, and muscles can take nearly six times as long as the SCN to adjust to jet lag.
1 – Anticipate the time change for trips by getting up and going to bed earlier several days before an eastward trip and later for a westward trip. 2 – If you're wearing a watch, change the time to the destination time zone when entering the plane. 3 – Avoid drinking alcohol during your flight.
It is widely acknowledged that jet lag is worse when travelling east, but this has nothing to do with the direction of Earth's rotation. Like many creatures, humans have a circadian rhythm that follows a 24-hour period and is kept in sync by the eyes' response to natural light levels over the day.
Common ways pilots avoid jetlag is staying hydrated, good rest, avoiding caffeine and alcohol, exercising, or sleeping on the airplane. For long-haul flights airlines use multiple pilots for the flight to allow each pilot to get some rest. The more time zones that are crossed, the worse the jet lag.
A jet lag rule of thumb says it normally takes one day per time zone to get back to “normal” (flying west to east). That means, after a nine-hour time change on a flight from the US west coast to Germany, you'll need nine days before your body fully adjusts to Central European Time.
Adjustment to a new time zone is harder when traveling east than traveling west. This is because you “lose” time and you end up trying to fall asleep when your body is actually waking up.
The reason for quicker flights while flying eastwards is jet streams. Put simply, these are fast-flowing, narrow air currents in the atmosphere found at high altitudes.
Flying east or west makes a difference to jet lagYour circadian rhythm (body clock) is less confused if you travel westward. This is because travelling west 'prolongs' the body clock's experience of its normal day-night cycle (the normal tendency of the body clock in most of us is slightly longer than 24 hours).
Adjust your sleep-wake schedule: Getting on the sleep-wake schedule at your destination quickly may help with jet lag symptoms. Focus on getting quality sleep: Sleeping on the plane, if you can, may help your body adjust faster to a new time zone.
You can use the fasting reset to get the circadian rhythm back on track. If you abstain from food while you travel and indulge in a filling meal the moment you land, you will supply the body with the necessary energy. Just like you would get from a regular morning meal. With fasting, jet lag symptoms can subside.