The shrinking of a region in the brain may be connected to poorer sleep quality, leading to less memory retention, according to findings published in Nature Neuroscience. Scientist reached that conclusion after an experiment in which they tested a person's ability to recall word pairs before and after sleep. "We've known for decades that sleep is disrupted in older adults, but we didn't know why. Our findings show that brain deterioration, bad memory and bad sleep are not independent, but instead are significantly interrelated," said neuroscientist Bryce Mander.
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