Alert date November 20, 2021
Covid 19 Related Resource
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Scientists have long said getting a good night’s sleep is important to your health.
The U.S. National Institute of Health says lack of sleep may even increase the risk of impaired brain activity, or cognitive decline, and Alzheimer’s disease.
Now, an American team of scientists reports that too much sleep might be similarly linked to such conditions.
Researchers at Washington University School of Medicine in St. Louis, Missouri, did the sleep study.
Their findings were published in the September issue of the scientific publication Brain.
Dr. Brendan Lucey is director of the Washington University Sleep Medicine Center and led the research. He said, “Our study suggests that there is a middle range, or ‘sweet spot,’ for total sleep time” for best cognitive performance.
“Short and long sleep times were associated with worse cognitive performance, perhaps due to insufficient sleep or poor sleep quality, ” Lucey added.
Words in This Story
cognitive decline – n. experience of worsening or more frequent confusion or memory loss
impairment – n. a condition in which a part of your body is damaged
sweet spot – n. an ideal or most favorable factor for particular activity or purpose
associate – v. to think of one thing when you think of another
recommend – v. to suggest that someone do something
metabolic – adj. related to a chemical process that grows and heals
key – n. something that is necessary in order to achieve something
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