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坐飞机长途飞行时,人们就会感觉到时差对身体的影响。如果飞越三四个时差区以上,人的生理时钟就会混乱。主要表现为对一个人习惯性的消化、睡眠和休息的节奏发生相当程度的干扰。到了目的地,大多数人白天精神萎靡不振,全身疲乏,晚上却异常兴奋,久久不能入睡。这一现象就是长途航空旅行带来的“时差病”。 时差是怎么回事呢?我们知道,将地球表面按经线等分为24个区,即所谓时区。以本初子午线为基准,东西经度各7.5度的范围为零时区,以后
When you fly long flights, people feel the effects of jet lag on the body. If you fly more than three or four jet lag zone, people’s physiological clock will be confused. Mainly for a person’s habitual digestion, sleep and rest rhythm quite a degree of interference. To the destination, most people are sluggish during the day, tired, tired at night but can not sleep for a long time. This phenomenon is caused by long-haul air travel “jet lag”. What is the time difference? We know that dividing the surface of the Earth into 24 zones according to the warp lines is the so-called time zone. Taking the prime meridian as a benchmark, the range of 7.5 degrees for each longitude of the east and west is zero time zone, and thereafter