Search results
Results From The WOW.Com Content Network
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]
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]
A prolonged-release 2 mg oral formulation of melatonin sold under the brand name Circadin is approved for use in the European Union in the short-term treatment of insomnia in people age 55 and older. [11] [29] [8] Melatonin is also available as an over-the-counter dietary supplement in many countries. It is available in both immediate-release ...
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.
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").
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 ...
Here are her tried-and-true tips after 25 years as a professional traveler: Avoid caffeine: Brown recommends turning down the in-flight coffee service so that the caffeine doesn't keep you up ...
Many of the programs in this list were not originally produced for PBS, but were acquired from other sources such as the BBC. [1] All acquired programs are edited for Nova, if only to provide American English narration and additional voice of interpreters (translating from another language). [1] Most of the episodes aired in a 60-minute time ...