 |
|
Decreased total sleep time associated with increased REM sleep during subsequent naps
June 10, 2008WESTCHESTER, Ill. - Decreased nightly total sleep time, even within the normal range, is associated with an increased percentage of REM sleep during subsequent naps, according to a research abstract that will be presented on Tuesday at SLEEP 2008, the 22nd Annual Meeting of the Associated Professional Sleep Societies (APSS).
The study, authored by Jennifer Kanady, of the University of California at San Diego, focused on 24 healthy subjects, who wore an actigraph for seven nights while adhering to a regular sleep-wake schedule followed by a 90-minute, polysomnographically-recorded nap. The influence of two-night and seven-night averages of total sleep time immediately prior to the nap on nap architecture was examined.
According to the results, less prior nightly total sleep time increased the percentage of REM sleep during the nap. Average total sleep time did not affect any other architecture variable of the nap. Bed and wake time appear to influence REM sleep percentage only in the short-term.
"The findings of our study indicate that minute differences in 'normal' sleep duration influence the percentage of REM sleep obtained in a subsequent afternoon nap," said Kanady. "Specifically, 10 minutes less sleep per night led to a 1.3 percent increase in nap REM percentage. These results may have important implications for studies examining sleep-dependent memory consolidation, particularly those studies that highlight the importance of REM sleep."
It is recommended that adults get between seven and eight hours of nightly sleep.
The American Academy of Sleep Medicine (AASM) offers the following tips on how to get a good night's sleep:
* Follow a consistent bedtime routine.
* Establish a relaxing setting at bedtime.
* Get a full night's sleep every night.
* Avoid foods or drinks that contain caffeine, as well as any medicine that has a stimulant, prior to bedtime.
* Do not bring your worries to bed with you.
* Do not go to bed hungry, but don't eat a big meal before bedtime either.
* Avoid any rigorous exercise within six hours of your bedtime.
* Make your bedroom quiet, dark and a little bit cool.
* Get up at the same time every morning.
Those who suspect that they might be suffering from a sleep disorder are encouraged to consult with their primary care physician or a sleep specialist.
American Academy of Sleep Medicine
"The findings of our study indicate that minute differences in 'normal' sleep duration influence the percentage of REM sleep obtained in a subsequent afternoon nap," said Kanady. "Specifically, 10 minutes less sleep per night led to a 1.3 percent increase in nap REM percentage. These results may have important implications for studies examining sleep-dependent memory consolidation, particularly those studies that highlight the importance of REM sleep."
It is recommended that adults get between seven and eight hours of nightly sleep.
The American Academy of Sleep Medicine (AASM) offers the following tips on how to get a good night's sleep:
* Follow a consistent bedtime routine.
* Establish a relaxing setting at bedtime.
* Get a full night's sleep every night.
* Avoid foods or drinks that contain caffeine, as well as any medicine that has a stimulant, prior to bedtime.
* Do not bring your worries to bed with you.
* Do not go to bed hungry, but don't eat a big meal before bedtime either.
* Avoid any rigorous exercise within six hours of your bedtime.
* Make your bedroom quiet, dark and a little bit cool.
* Get up at the same time every morning.
Those who suspect that they might be suffering from a sleep disorder are encouraged to consult with their primary care physician or a sleep specialist.
American Academy of Sleep Medicine
REM Sleep Current Events and REM Sleep News RSSWhat a Sleep Study Can Reveal About Fibromyalgia
Research engineers and sleep medicine specialists from two Michigan universities have joined technical and clinical hands to put innovative quantitative analysis, signal-processing technology and computer algorithms to work in the sleep lab.
Less REM sleep associated with being overweight among children and teens
Children and teens who get less sleep, especially those who spend less time in rapid eye movement (REM) sleep, may be more likely to be overweight, according to a report in the August issue of Archives of General Psychiatry, one of the JAMA/Archives journals.
Note to people with scarred and stiffened lungs: Monitor your sleep before severe fatigue sets in
Family, friends and neighbors remember Lisa Sandler Spaeth as an active mother of two in Potomac, Md., with a lot on the go, juggling her son's baseball games and her daughter's horseback-riding lessons with numerous committee obligations, organizing women's activities at her local synagogue.
REM sleep associated with overweight in children and adolescents
Short sleep time is associated with overweight in children and adolescents, a core aspect of which may be attributed to reduced REM sleep, according to a research abstract that will be presented on Thursday at SLEEP 2008, the 22nd Annual Meeting of the Associated Professional Sleep Societies (APSS).
Children with Down Syndrome sleep poorly and have more fragmented sleep
Children with Down Syndrome sleep poorly, with more fragmented sleep and frequent awakenings compared to typically developing children, according to a research abstract that will be presented on Tuesday at SLEEP 2008, the 22nd Annual Meeting of the Associated Professional Sleep Societies (APSS).
Link between migranes and sleep disorders in children
Children with a migraine headache are more likely to have sleep disorders, such as obstructive sleep apnea (OSA) and lack of sleep, than children without a migraine.
Type of anesthetic will improve sleeping medication, probe mysteries of the snooze
Researchers at the University of Alberta have discovered sleep patterns in a type of anesthesia that are the closest ever to a natural, non-groggy snooze.
No difference in sleep of OSA patients studied in a hospital vs. a hotel-based sleep center
A study published in the April 15 issue of the Journal of Clinical Sleep Medicine (JCSM) finds no significant difference in sleep parameters associated with the first-night effect in patients undergoing sleep studies in a hotel and a hospital-based sleep laboratory.
Journal SLEEP: Methylphenidate can have sleep benefits in adults with ADHD
Treatment with methylphenidate (MPH) appears to have beneficial effects on sleep parameters in adults with ADHD, including increased sleep efficiency and a feeling of improved restorative value of sleep, according to a study published in the March 1 issue of the journal SLEEP.
Lack of deep sleep may increase risk of type 2 diabetes
Suppression of slow-wave sleep in healthy young adults significantly decreases their ability to regulate blood-sugar levels and increases the risk of type 2 diabetes.
More REM Sleep Current Events and REM Sleep News Articles
 | Sleep (Scientific American Library Series,) by J. Allan Hobson We may spend up to one-third of our lives asleep--but there is no rest for the brain. On the contrary, sleeping is a time of continual, spontaneous brain activity largely independent of external stimuli. Through a brilliant examination of recent studies of sleep patterns, dreaming, and disorders such as insomnia, J. Allan Hobson reveals that we know about the physical basis of human... |
| Rem Sleep: If I Should Die Before I Wake... by John W., Jr. Crisanti | |
 | A daytime nap containing solely non-REM sleep enhances declarative but not procedural memory [An article from: Neurobiology of Learning and Memory] by M.A. Tucker, Y. Hirota, E.J. Wamsley, H. Lau, Chak This digital document is a journal article from Neurobiology of Learning and Memory, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.Description: The specialized role that sleep-specific brain physiology plays in memory processing is being rapidly clarified... |
 | Poor recall of eye-movement signals from Stage 2 compared to REM sleep: Implications for models of dreaming [An article from: Consciousness and Cognition] by R. Conduit, S.G. Crewther, G. Coleman This digital document is a journal article from Consciousness and Cognition, published by Elsevier in 2004. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.Description: An ongoing assumption made by sleep researchers is that since dreams are more often recalled on awakening from rapid eye... |
| Experimental Studies on the Significance of Active (c.q. REM)-Sleep for Maturation of Brain and Behavior in the Rat by Majid Mirmiran | |
| Paradox Lost - Midnight in the Battleground of Sleep and Dreams - Violent Moving Nightmares, REM Sleep Behavior Disorder In this book, physician and scientist, Carlos H. Schenck, MD, tells his story of helping discover the "dream-enacting" disorder in 1982, which he and his colleagues named the "Rapid-eye-movement (REM) sleep behavior disorder" RBD. Since the time that RBD was first reported by Dr. Schenck et al. in 1985, thousands of cases of RBD from around the world have been published in medical journals. RBD... | |
| Rem Sleep: Its Temporal Distribution (Sleep Journal Reprint Nos.3-4) by Charles A. Czeisler | |
| Sleep Deep Hypnosis (Sleep Deep Hypnosis - Cd Set) | |
| SLEEP by Gau Gaer :ice, Julius Segal Remarkable account of the anatomy of sleep-and of the results of a decade of breakthrough research-reveals startling discoveries about: SLEEP AND DRUGS, THE NATURE OF THE DREAMER, SLEEP DEPRIVATION AND PSYCHOSIS, TROUBLED SLEEP, REM SLEEP, SLEEP AND JET TRAVEL, LEARNING WHILE... | |
| Sleep: An entry from Thomson Gale's Gale Encyclopedia of Science, 3rd ed. by Marie L. Thompson The “Gale Encyclopedia of Science” is written at a level somewhere between the introductory sources and the highly technical texts currently available. This six-volume set covers all major areas of science and engineering, as well as mathematics and the medical and health sciences, while providing a comprehensive overview of current scientific knowledge and technology. Alphabetically arranged... |
| © 2008 BrightSurf.com |