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What 2 factors determine the severity of jetlag and how?

Question

What 2 factors determine the severity of jetlag and how?

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Solution

The severity of jet lag can be determined by two main factors:

  1. Number of Time Zones Crossed: The more time zones you cross during your flight, the more severe your jet lag can be. This is because your body's internal clock, or circadian rhythm, needs time to adjust to the new time zone. For example, if you fly from New York to Los Angeles, you cross three time zones, and it may take a few days for your body to adjust. But if you fly from New York to Tokyo, you cross 14 time zones, and it can take much longer to adjust.

  2. Direction of Travel: Generally, it's more difficult for our bodies to adjust when we fly eastward compared to westward. This is because traveling eastward effectively shortens our day, and our bodies have a harder time adjusting to a shorter day than a longer one. For example, if you fly from New York to London, you "lose" five hours, and it can be harder for your body to adjust than if you fly from London to New York, where you "gain" five hours.

In addition to these two factors, individual factors such as age, overall health, and how well you sleep on the plane can also affect the severity of jet lag.

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