题型:阅读理解 题类:模拟题 难易度:普通
云南省昆明市2021届高三下学期英语5月第九次考前适应性训练试卷
Taking an afternoon nap could keep your brain sharp, a new study has found. Adults ages 60 and older who took afternoon naps showed signs of better mental mind compared to those who didn't nap, according to a study published in General Psychiatry earlier this week.
Researchers analyzed napping habits in 2, 214 Chinese people aged 60 and older and measured their cognitive abilities using several cognitive tests. Participants took the Mini-Mental State Examination and the Beijing version of the Montreal Cognitive Assessment, both of which test for memory, language and other cognitive abilities. In every category listed in the study, nappers scored statistically higher on average compared to those non-napping people. Researchers did not gather data from people under 60, so a correlation cannot be drawn between napping and younger generations.
Sleeping behaviors can be affected by a variety of factors, said Dr. David Neubauer, associate professor at Johns Hopkins University. Daily routines, medication use and sleep disorders can all play a role in how frequently someone takes a nap, he said.
Neubauer recommended taking a shorter "power nap" of up to 20 minutes to decrease the chances of transitioning into slow-wave sleep, which makes people feel dizzy when they wake up. Napping can be a healthy part of an older adult's day, Neubauer acknowledged, but make sure sleepiness isn't due to a treatable nighttime sleep disorder. "Older individuals who want to do all they can to preserve their cognitive functioning should put nighttime sleep in the first place."
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