There are countless reasons to stay up late in college. Here’s one good reason to go to bed.
The less a student sleeps every night, the lower their grade-point average will be, according to a two-year study of the sleep habits of more than 600 college freshmen.
Researchers found that every lost hour of average nightly sleep at the start of an academic term was associated with a 0.07-point _________ in a student’s end-of-term GPA. When a student slept less than six hours a night, the _________ of lost sleep on a student’s grades was even more _________ said David Creswell, the lead author of the study.
“You’re _________ this sleep debt,” Creswell said. “And that has a pretty negative role _________ people’s academics.”
Sleep, especially undisturbed sleep, helps the brain _________ and retain information it has learned. And when someone is sleep-deprived, attention span and memory are also impaired (受损的).
But students face a variety of “_________ pressure” that keep them up late in college, which is often the first time students are living away from home, Creswell said. The average student in the sample group typically fell asleep at about 2:30 a.m. _________ any of the students went to bed before midnight. And, on average, they slept 6.5 hours a night.
It’s not clear why less sleep would cause someone to have a lower GPA, Creswell said. Sleeping for longer, _________ periods of time allows for REM sleep, a period of unconscious rapid eye movement that corresponds with high activity in the brain. Creswell said he __________ that a regular pattern of __________ sleep creates a “sleep debt” overtime, leaving students unable to concentrate. “These college students are going to class with a ton of sleep debt, and they’re having trouble staying focused and __________ in college classrooms,” Creswell said. “Those thing can really harm your ability to really __________ with the material.”
Obviously, the findings could inform systemic changes at university campaigns or workshops to help students have a better night’s sleep. There are multiple pathways to get to a GPA, and sleep is like the __________ that holds students’ lives together in lots of domains.
“Fundamentally, it __________ If we’re not sleeping well, all systems are not a go,” Creswell said. “Our body is not prepared for the day ahead of us and what we’re asking it to do if we don’t have that good, basic chunk of night-time sleep.”
21. A.consistent | B.parallel | C.rise | D.drop |
22. A.efficiency | B.account | C.effect | D.edge |
23. A.contradictory | B.noticeable | C.promoted | D.abstract |
24. A.accumulating | B.handling | C.estimating | D.motivating |
25. A.in accordance with | B.in terms of | C.in line with | D.in a state of |
26. A.intervention | B.produce | C.process | D.privilege |
27. A.investigating | B.comprehending | C.achieving | D.competing |
28. A.Briefly | B.Brilliantly | C.Barely | D.Bitterly |
29. A.unpredicted | B.uninterrupted | C.undetermined | D.underlined |
30. A.suspects | B.decreases | C.sustains | D.subscribes |
31. A.improper | B.insufficient | C.adequate | D.extraordinary |
32. A.building | B.returning | C.learning | D.enrolling |
33. A.engage | B.shift | C.evolve | D.evaluate |
34. A.glance | B.gossip | C.grade | D.glue |
35. A.comes down with | B.comes down to | C.attends to | D.gets down to |