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Normal and Abnormal Sleep in the Elderly

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Try out PMC Labs and tell us what you think. Learn More. Our knowledge about how sleep changes with age has grown significantly over the past few decades. However, aging is also accompanied by a variety of sleep complaints and sleep disorders. This chapter will review both normal and abnormal sleep in the elderly. Polysomnography PSG has provided objective evidence of the changes in sleep architecture that occur with aging. In general, sleep becomes more fragmented and lighter with an increase in the number of arousals and awakenings. There is a reduction in the amount of slow wave sleep stage 3 and 4beginning in middle-age, with some reports that these deeper stages of sleep are completely absent after the age of 90 Bliwise ; Ohayon et al. There is a compensatory increase in the lighter stages of sleep stage 1 and 2and there is a decrease in rapid-eye-movement REM sleep, which is proportional to the decrease in total sleep time.

Aim out PMC Labs and tell us what you think. Learn More. This paper will review both normal after that abnormal sleep in the elderly. Analyse data show that half of aged individuals report some form of be asleep difficulty, including longer sleep onset times, lower rates of sleep efficiency, add time in bed, more awakenings all through the night, earlier wake up times, and more daytime naps.

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