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Everyone knows that good sleep is important for our health. Not everyone realizes how important it is to sleep in the dark. According to a new report, sleeping with the light on may be bad for our health.
Researchers said turning off lights when we sleep helps to prevent diabetes(糖尿病) and heart disease. Sleeping with the light on could increase the risk of getting these diseases. The researchers said around 40% of people sleep with some sort of artificial (人造的) light. They said even the light from a television or an alarm clock could affect our health. They added that the worst thing to sleep with is a main light. Sleeping in the dark is more difficult for people who live in cities, where there is a lot of outdoor light at night.
The researchers are from the Northwestern University Feinberg School of Medicine in Chicago, USA. The lead researcher, Dr Phyllis Zee, is an expert in sleep medicine. She said it is healthier for us to turn off all lights when we sleep. Her team studied the blood sugar levels of 20 people after a night’s sleep. The people who slept with a light on had higher blood sugar levels the next morning compared to those who slept in total darkness.
Dr Zee said this is because light stimulates (刺激) brain activity, which raises blood sugar levels. She said there are three things we can do to reduce the risk of illness: turn off the lights, never sleep with white or blue light, and use a blackout curtain or wear an eye mask.
根据所阅读的短文内容,选择最佳选项。
(
A. It helps us dream more vividly.
B. It makes us fall asleep faster.
C. It can help prevent diabetes and heart disease.
(
A. People have higher blood sugar levels the next morning.
B. People wake up more often during the night.
C. People feel less rested the next day.
(
A. The sun.
B. A television or an alarm clock.
C. Street lights outside the window.
(
A. Listen to soft music before bed.
B. Keep a small lamp on for safety.
C. Turn off all lights and use blackout curtains or eye masks.
D
Everyone knows that good sleep is important for our health. Not everyone realizes how important it is to sleep in the dark. According to a new report, sleeping with the light on may be bad for our health.
Researchers said turning off lights when we sleep helps to prevent diabetes(糖尿病) and heart disease. Sleeping with the light on could increase the risk of getting these diseases. The researchers said around 40% of people sleep with some sort of artificial (人造的) light. They said even the light from a television or an alarm clock could affect our health. They added that the worst thing to sleep with is a main light. Sleeping in the dark is more difficult for people who live in cities, where there is a lot of outdoor light at night.
The researchers are from the Northwestern University Feinberg School of Medicine in Chicago, USA. The lead researcher, Dr Phyllis Zee, is an expert in sleep medicine. She said it is healthier for us to turn off all lights when we sleep. Her team studied the blood sugar levels of 20 people after a night’s sleep. The people who slept with a light on had higher blood sugar levels the next morning compared to those who slept in total darkness.
Dr Zee said this is because light stimulates (刺激) brain activity, which raises blood sugar levels. She said there are three things we can do to reduce the risk of illness: turn off the lights, never sleep with white or blue light, and use a blackout curtain or wear an eye mask.
根据所阅读的短文内容,选择最佳选项。
(
C
)1. According to the article, why is it important to sleep in the dark?A. It helps us dream more vividly.
B. It makes us fall asleep faster.
C. It can help prevent diabetes and heart disease.
(
A
)2. What did Dr Zee’s study find about sleeping with the light on?A. People have higher blood sugar levels the next morning.
B. People wake up more often during the night.
C. People feel less rested the next day.
(
B
)3. Which of the following is mentioned as a source of artificial light that could affect our health while sleeping?A. The sun.
B. A television or an alarm clock.
C. Street lights outside the window.
(
C
)4. What suggestion does Dr Zee give to reduce the risk of illness caused by sleeping with the light on?A. Listen to soft music before bed.
B. Keep a small lamp on for safety.
C. Turn off all lights and use blackout curtains or eye masks.
D
答案
1. C
2. A
3. B
4. C
2. A
3. B
4. C
