Time difference jet lag的意思
"Time difference jet lag" is a term that combines two concepts: "time difference" and "jet lag." Let's break down each term to understand the meaning of the phrase:
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Time difference: This refers to the difference in time between two locations. For example, if it's noon in New York (UTC-5) and 5:00 PM in London (UTC+1), there is a 6-hour time difference (5:00 PM - 12:00 PM = 6 hours).
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Jet lag: Jet lag is a temporary condition people experience after flying across time zones, typically on long flights. It's a form of insomnia and fatigue that results from the disruption of the body's circadian rhythms (internal clock) due to the rapid change in time zones. Symptoms can include difficulty sleeping, daytime drowsiness, gastrointestinal issues, and cognitive problems.
Putting these together, "time difference jet lag" specifically refers to the jet lag experienced due to the time difference between departure and arrival locations. For instance, if you fly from New York to London, the time difference of 5 hours (assuming it's not daylight savings time) can cause jet lag as your body tries to adjust to the new time zone.
In summary, "time difference jet lag" is a way to describe the jet lag that results from the physical act of flying and the subsequent adjustment to a new time zone, emphasizing the role of the time difference in causing the jet lag symptoms.