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Polysomnography (PSG) is a multi-parameter type of sleep study [1] and a diagnostic tool in sleep medicine.The test result is called a polysomnogram, also abbreviated PSG.The name is derived from Greek and Latin roots: the Greek πολύς (polus for "many, much", indicating many channels), the Latin somnus ("sleep"), and the Greek γράφειν (graphein, "to write").
List of Zoey 101 episodes. List of. Zoey 101. episodes. Zoey 101 is an American comedy drama television series created by Dan Schneider for Nickelodeon. It aired from January 9, 2005, to May 2, 2008. A total of 61 episodes were aired, spanning four seasons.
The sleep cycle is an oscillation between the slow-wave and REM (paradoxical) phases of sleep. It is sometimes called the ultradian sleep cycle, sleep–dream cycle, or REM-NREM cycle, to distinguish it from the circadian alternation between sleep and wakefulness. In humans, this cycle takes 70 to 110 minutes (90 ± 20 minutes). [ 1]
Under pressure from lobbyists and Capitol Hill, the FDA in 1997 produced new guidelines declaring that companies’ ads just had to devote roughly equal time to the risks and benefits of a drug. One year later, spending on television drug ads had more than doubled, from $310 million to $664 million.
Bedtime procrastination is a psychological phenomenon that involves needlessly and voluntarily delaying going to bed, despite foreseeably being worse off as a result. [ 1] Bedtime procrastination can occur due to losing track of time, or as an attempt to enjoy control over the nighttime due to a perceived lack of control over the events of the ...
As you wait for prescription drug costs to come down from the clouds, here's how you can save money on the medications you need. 1. Use a coupon program. If you don't have insurance, a ...
The respiratory disturbance index ( RDI )—or respiratory distress Index —is a formula used in reporting polysomnography (sleep study) findings. Like the apnea-hypopnea index (AHI), it reports on respiratory distress events during sleep, but unlike the AHI, it also includes respiratory-effort related arousals (RERAs). [ 1]
Infants ages 0-3 months require about 14-17 hours of sleep daily. Toddlers ages 1-2 years need approximately 11-14 hours of daily sleep. Children ages 3-5 years should aim for 10-13 hours. Older ...