Do you ever feel sick, confused, or very tired after a long plane ride If you were fly-ing east to west or west to east, the problem could have been jet lag. (45) Jet lag happens when your body’s time clock becomes confuseD、Crossing several time zones may make you feel very tireD、You may become confused because you are tireD、In fact, you may become so confused that you won’t be able to do your work. You might get headaches and feel that you have problems eating and sleeping. These are all symptoms of jet lag.
However, if you feel tired after flying from north to south or south to north, you do not have jet lag. Maybe you feel tired from the tiredness and work of getting ready for the trip. You will feel better after you get some sleep. The symptoms that you feel during a flight, such as thirst and motion sickness, are not jet lag either. They are caused by the air pressure in the plane. When you travel north or south, you do not cross time zones. So you do not have true jet lag. If you are tired when you fly south or north, A、you will feel better after some sleep B、you should go to see a doctor C、you should do some exercise D、you should eat more
AlthoughEnglish is not as old asChinese, it is spoken by many people around the world every day. English speakers are always creating new words, and we are often able to know where most words come from. Sometimes, however, no one may really know where a word comes from.Did you ever think about why hamburgers are called hamburgers, especially when they are not made with hamAbout a hundred years ago, some men went toAmerica fromEurope. They came from a big city in Germany called Hamb