中老年每晚睡眠不足5小时易患多种慢性病
New research analyzed the impact of sleep duration on the health of more than 7,000 men and women at the ages of 50, 60 and 70. Researchers examined the relationship between how long each participant slept for, mortality(死亡率) and whether they had been diagnosed with two or more chronic(慢性的) diseases (multimorbidity)—such as heart disease, cancer or diabetes—over the course of 25 years.
People who reported getting five hours of sleep or less at age 50 were 20% more likely to have been diagnosed with a chronic disease and 40% more likely to be diagnosed with two or more chronic diseases over 25 years, compared to people who slept for up to seven hours. Additionally, sleeping for five hours or less at the age of 50, 60, and 70 was linked to a 30% to 40% increased risk of multimorbidity when compared with those who slept for up to seven hours. Researchers also found that sleep duration of five hours or less at age 50 was associated with a 25% increased risk of mortality over the 25 years of follow-up.
Lead author Dr Severine Sabia said: “As people get older, their sleep habits and sleep structure change. It is recommended to sleep for 7 to 8 hours a night. To ensure a better night’s sleep, it’s advised to remove electronic devices and avoid large meals before bedtime. Physical activity and exposure to light during the day might also promote good sleep.”
Jo Whitmore said: “Getting enough sleep allows your body to rest. There are a host of other ways that poor sleep could increase the risk of heart disease or stroke, including by increasing inflammation(炎症) and increasing blood pressure. This research adds to a growing body of research that highlights the importance of getting a good night’s sleep.”
However, researchers used self-reported data on sleep, which is likely to be subject to reporting bias. Meanwhile, data on sleep quality was only available for those aged 60 and 70. And participants only involve members of the civil service, who were all employed and likely to be healthier than the general population.
本时文内容由奇速英语国际教育研究院原创编写，未经书面授权，禁止复制和任何商业用途，版权所有，侵权必究！（作者投稿及时文阅读定制请联系微信：18980471698）1.What’s the result of the research mentioned in the text?
A Long sleeping time decreases the risk of mortality.
B Older people are more likely to be diagnosed with diseases.
C Short sleep duration increases the risk of chronic diseases.
D There’s no clear link between sleep duration and multimorbidity.
解析：选C。C 推理判断题。根据第二段可知，与睡眠时间长达7小时的人相比，在50岁睡眠少于5小时的人在25年内被诊断出患(一种)慢性病的可能性要高20%，患两种及以上慢性病的可能性要高40%。此外，在50岁、60岁、70岁的人群中，睡眠少于5小时的人与睡7小时的人相比，患两种及以上慢性病的可能性要高30%到40%。由此可知，睡眠时间短会增加患慢性疾病的风险。故选C。
2.What is recommended by Dr Severine Sabia to get a better sleep?
A Changing our sleep habits and sleep structure.
B Don’t swipe your phone before sleep.
C Always having big meals at night.
D Sleeping at least eight hours every night.
解析：选B。B 细节理解题。根据第三段的“it’s advised to remove electronic devices and avoid large meals before bedtime”可知，睡觉前不要玩电子设备，睡前不玩手机包含在内。故选B。
3.What does Jo Whitmore think of the research?
A It will be a long-term process.
B The findings are not solid enough.
C What has been done is satisfactory.
D More profound work needs to be done.
解析：选C。C 推理判断题。根据倒数第二段最后一句“This research adds to a growing body of research that highlights the importance of getting a good night’s sleep.”可知，Jo Whitmore认为越来越多的研究强调睡好觉的重要性，前文所提及的研究为关于睡眠和健康的研究增添了新的内容。由此可知他对这一研究感到满意。故选C。
4.What does the last paragraph mainly talk about?
A A suggestion for future studies.
B A major limitation of the study.
C A possible reason for the study findings.
D An explanation of the research method.
解析：选B。B 段落大意题。根据最后一段中的“used self-reported data”“was only available for those aged 60 and 70”“participants only involve members of the civil service”“likely to be healthier than the general population”等可知，本段主要讨论了该研究的局限性。故选B。