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Children before puberty tend to fall asleep earlier at night than adolescents. People after puberty begin to go to bed earlier due to the change of the biological clock. Young children’s biological clock has the same rhythm with that of the teenagers. Teenagers go to bed later than they used to due to the light from the computer screen.
it has a cycle of 24 hours it controls when we wake, when we eat and when we sleep it can alarm any time during 24 hours it is a cycle also called circadian rhythm
"condition". "discomfort". "injury". "excitement".
is located in is set in set in located in
Our biological clock resets itself automatically． light gets through our eyes and resets our biological clock． Our internal clock as well as the alarm clock can be reset automatically． Our internal clock，like the alarm clock，can be reset．
Flash Hard Floppy Compact
Crossing different time zones. Changing light and activity levels. Working longer hours. Watching out of the plane for a long time.
on the motherboard outside inside the processor on the CPU
"condition". "discomfort". "injury". "excitement".
inside the Upper World inside the Lower World above the Upper World between the Upper World and the Lower World
it is hard for teenagers to get out of bed in the morning staying up late has a bad effect on teenagers’ ability to think and learn it is natural for teenagers to stay up late and get up late during puberty most teenagers experience a kind of gray cloud
it controls when we wake，when we eat and when we sleep it has a cycle of 24 hours it is a cycle also called circadian rhythm it can alarm any time during 24 hours
to be located being located locating located
inside / associated inside / not associated outside / associated outside / not associated
is located located locates locating
After before inside outside
Locating Located Have located To locate
The human eye had two light-sensing systems. The human eye could sense the light of day more quickly than the dark of night. The human eye could reset our internal clocks in accordance with the alarm clocks. The human eye had one light-sensing system.
light gets through our eyes and resets our biological clock. Our biological clock resets itself automatically. Our internal clock, like the alarm clock, can be reset. Our internal clock as well as the alarm clock can be reset automatically.
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