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上午多接触光线有利于身心健康

较难

高中一年级

议论文

健康与饮食

科学研究表明，躲让自己曝露在上午的阳光里能让人睡眠更好，并且不会感觉到抑郁。作者在文章最后还提出了让自己增加阳光照射的方法。

Exposure to more light during the day and less light at night is important for healthy sleep patterns because it helps to keep the right body clock, the study team writes in the journal Sleep Health . The results suggest that in office environment, being exposed either to daylight or electric lights that are rich in short wave blue light may be important for the health of workers. “Many office buildings may actually be moving in the direction of reducing light,” said Figueiro. “Much has been done to reduce light levels to promote energy efficiency, which is important, but we may be going too far in this direction.” she added, “We need to start thinking about how we light our daytime environment.”

To see whether typical office workers get enough light to regulate their sleep-wake cycle, the study team found participants in five government office buildings across the United States. A total of 109 employees working at the offices wore light-measuring devices for one week in summertime, and 81 of these participants repeated the experiment in winter as well. The office workers wrote down their sleep and wake time and completed questionnaires about their mood and sleep quality at the end of each study period.

Researchers found that people who were exposed to greater amounts of light during the morning hours, between 8 am and noon, fell asleep more quickly at night compared to those exposed to low light in the morning. People getting more morning light were also less likely to report feelings of depression and stress.

Office workers who were exposed to high levels of light all day, from 8 am to 5 pm, also reported lower levels of sleep disturbance and depression.

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1 . Why do many office buildings reduce the light in the office?

A.

They want to keep the right body clock.

B.

They know less light is very important.

C.

They need daylight or electric lights.

D.

They would like to save some energy.

2 . How did the researcher know the light the workers got in the office?

A.

They tested their sleep-wake cycles.

B.

They offered light-measuring devices.

C.

They repeated the experiment again.

D.

They had the questionnaires completed.

3 . What happened to people who got greater amounts of light in the morning?

A.

They felt positive.

B.

They woke up quickly.

C.

They felt stressed.

D.

They got tired easily.

4 . What can people do to make them exposed to sunlight?

A.

They link their physical health problems with good quality sleep.

B.

They can look out of the windows.

C.

They should pay attention to their sleep quality.

D.

They are able to have lunch in offices.

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