The processes that control respiration differ substantially across the 3 sleep/awake states (awake, rapid eye movement sleep, and non-rapid-eye-movement sleep). This has important implications for clinicians caring for patients with and without underlying cardiopulmonary disease, because we now recognize an array of sleep-related breathing disorders. Some diseases, such as sleep apnea, are slee...

OBJECTIVES Illustrate the importance of examining within- and between-person differences in sleep across the adult age span. METHOD Two weeks of sleep diary data were analyzed for 592 normal sleepers ranging in age from 20 to 96 years. Variability in total sleep time (TST), number of nighttime awakenings (NWAK), sleep-onset latency (SOL), and wake-time after sleep onset (WASO) were examined o...

We all know that sleep serves a purpose, but many parents are surprised to learn the complex functions of sleep in children. Sleep is a time of intense neurologic and physiologic activity; there are times where the brain is more active during sleep than awake. For children this is especially true. By the age of three the average child has spent more time sleeping than all wakeful times combined...

background and objective : obstructive sleep apnea (osa) syndrome is a kind of sleep-related disorder with complex features and may lead to daytime sleepiness. this study aimed to find the differences between smokers and non-smokers regarding the parameters of polysomnography. materials and methods : this was a cross-sectional study conducted on consecutive patients referred to a sleep lab to p...

background and objective: obstructive sleep apnea (osa) is a disease with serious consequences. many portable devices have been developed to overwhelm some of limitations in the accessibility of the gold standard test for osa, polysomnography (psg). this study aimed to determine diagnostic accuracy of a portable sleep apnea screener against psg in patients of a sleep clinic. materials and metho...

Obstructive sleep apnea (OSA) is highly prevalent in the United States, with an estimated 1 in 4 Americans at risk for OSA. In recent years, there has been a large body of work assessing the role of OSA as an independent risk factor for hypertension. Certain patient characteristics, such as age and the type of elevated blood pressure, may confer increased likelihood that the hypertension is sec...

..................................................................................................10 CHAPTER

I nterest in abnormal breathing after stroke has a long history dating back at least to the observations of John Cheyne in 1818. In recent years this interest has been reawakened by a number of publications on the relations between sleep disordered breathing (SDB) and stroke. These studies have been of two main types—those investigating the possible increased risk of stroke in individuals with ...