what is a "jet lag" ? give me details about it !?

Answer 1

Jet lag occurs when you travel through time zones. Such as flying from the UK where it's like 3am to Melbourne where it's 12pm. So when you're tired when you land in Melbourne, because to your body, it's 3am, it's jet lag because it's really 12pm in Melbourne.

Or if you fly from the UK to Toronto and you land in Toronto and your body thinks it's 9pm because it's still in UK time, and you're wide awake but really Toronto time is like 3am, so you should be tired.

It's difficult to explain but if you take a long flight, about a 5 hour flight, you'll feel it.

Answer 2

As others have said, it is a time zone thing. You get up at 6:00AM in London and take a plane to Los Angeles. Lets say the trip takes 18 hours. You might think it is now midnight and be sleepy because 18 hours after 6:00AM is midnight. It is midnight in London, but in Los Angeles it is only 4:00PM. You have to stay up several more hours before it is bedtime. If you go to bed in Los Angeles at 10:00PM, you have been awake 24 hours, the 18 hours it took to fly there plus the 6 hours more you waited until 10:00PM. Now you might think that after staying up 24 hours you would have no trouble sleeping like a baby until 6:00AM the next morning, but you don't because you have been up 24 hours, which would normally mean that you stayed up all night and are seeing the sunrise. Your body is used to waking up every 24 hours and even though the sun is not up in Los Angeles, your body will not feel sleepy. So even though you are exhausted, you can't sleep. You have insomnia. After tossing and turning all night, you get up at 6:00AM to go to a meeting in Los Angeles. Now you have been awake 32 hours and you are really exhausted. Not only that, but it is getting close to 36 hours since you had a good sleep. Normally 36 hours after you get up would be the next evening and bedtime again. If fact, back in London, it is 2:00 in the afternoon. So even though it is 6:00AM in Los Angeles, you feel like a person in London who stayed up all night and went to work and it is now 2:00PM in the afternoon, and you can't stay awake. So you doze off all day long that first day in LA. Your biological rhythms are lagging behind the clock by 8 hours. This goes on for a week or so until your body gets used to the new time zone. This problem is caused by the fact that you changed time zones by several hours all in one day, something that is only possible if you travel very fast over long distances, which is only possible by flying on a jet. Hence the name jet lag.

Answer 3

jet lag happened when people travel far. Its a 'body missunderstanding'.Bcoz your body clock tell you 2:00 pm in Sydney but you are in California but it is still 3:00 am at CA.

Answer 4

Your mind thinks that night is day and day is night , because you left the sun behind you , so you sleep at day and wake at night , it takes about 3 days to get used just dont drink any coffe

Answer 5

it's your body trying to get adjusted to the new time that your in.