题型:阅读理解 题类:常考题 难易度:普通
广东省深圳市耀华实验学校2018-2019学年高一上学期英语第一次月考试题
Staying up late is a potential battle between parents and kids. But the solution could be as simple as changing your meal time.
Researchers at the University of Surrey, UK, found that delaying (延迟) meals could help change one of the internal (内部的) body clocks. Besides a “master” clock in the brain, there are clocks in other parts of the body. They are usually synchronized (同步的) according to factors including light.
During the study, researchers tested 10 participants to study the effect of changing meal times on their body clocks. The participants were given three meals – breakfast, lunch and dinner. In the first stage, participants received breakfast 30 minutes after waking. Lunch and dinner followed, after 5-hour intervals (间隔). In the second stage, each meal was delayed by 5 hours. Right after each stage, blood and fat samples (样本) were collected.
Results showed that later meal times greatly influenced blood sugar levels. A 5-hour delay in meal times caused a 5-hour delay in the internal blood sugar rhythms (规律性变化).
The discovery showed that meal times are in line with (与……一致) the body clock that controls blood sugar levels.
This is a small study but the researchers believed the findings could help jet lag (飞行时差反应) sufferers and night-shift (夜班的) workers.
In a study by the University of Surrey in 2013, researchers explored what happened when a person's body was changed from a normal pattern to that of a night-shift worker's.
After people work through the night, over 97 percent of the body's rhythmic genes are disrupted (扰乱).
These findings explain why we feel so bad following a long flight, or after working at night, according to Simon Archer, one of the study's researchers.
“It's like living in a house. There's a clock in every room in the house and in all of those rooms those clocks are now disrupted, which of course leads to chaos (混乱) in the household,” fellow researcher Derk-Jan Dijk told the BBC.
Changing meal times didn't affect the “master” body clock – the one controlling when we get sleepy – but it can reset the body clock that controls blood sugar levels.
This wouldn't necessarily cure jet lag completely, but it might reduce the negative effects.
A study published earlier this year suggested that just a weekend camping trip could be enough to reset our body clocks. And now this latest research shows regular food schedules could play a key part too.
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