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Last updated on April 16, 2014 at 6:49 EDT

Latest Slow-wave sleep Stories

2010-10-26 11:10:43

(Ivanhoe Newswire) -- Have you ever wondered how some people go about their busy days on only 4 hours of sleep while others need at least 8 to function? This study suggests that genes may play a role in how the amount of sleep we get affects us. The study examined people who have a gene variant that is closely associated with narcolepsy, a sleep disorder that causes excessive daytime sleepiness. Having the gene variant, called DQB1*0602, doesn't mean that a person will develop narcolepsy....

2010-09-01 17:42:44

Young adults who get fewer than eight hours of sleep per night have greater risks of psychological distress, a combination of high levels of depressive and anxious symptoms, according to a study in the Sept. 1 issue of the journal SLEEP. Using an average self-reported nightly sleep duration of eight to nine hours as a reference, the study found a linear association between sleep durations of less than eight hours and psychological distress in young adults between 17 and 24 years of age. The...

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2010-02-21 10:35:00

Findings suggest that a biphasic sleep schedule not only refreshes the mind, but can make you smarter If you see a student dozing in the library or a co-worker catching 40 winks in her cubicle, don't roll your eyes. New research from the University of California, Berkeley, shows that an hour's nap can dramatically boost and restore your brain power. Indeed, the findings suggest that a biphasic sleep schedule not only refreshes the mind, but can make you smarter. Conversely, the more hours we...

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2010-02-01 08:00:00

A study in the Feb. 1 issue of the journal SLEEP suggests that healthy older adults without sleep disorders can expect to have a reduced "sleep need" and to be less sleepy during the day than healthy young adults. Results show that during a night of eight hours in bed, total sleep time decreased significantly and progressively with age. Older adults slept about 20 minutes less than middle-aged adults, who slept 23 minutes less than young adults. The number of awakenings and the amount of time...

2010-01-27 16:48:05

MADISON, Wis. -- The brains of people under anesthesia respond to stimuli as they do in the deepest part of sleep "“ lending credence to a developing theory of consciousness and suggesting a new method to assess loss of consciousness in conditions such as coma. Scientists at the University of Wisconsin School of Medicine and Public Health, led by brain researcher Fabio Ferrarelli, reported their findings in this week's edition of the Proceedings of the National Academy of Science. The...

2009-12-15 07:00:00

MALIBU, Calif., Dec. 15 /PRNewswire/ -- At a time when Americans spend over $50 billion on ways to alleviate neck and back pain, Dr. Raymond Hall is theorizing a painful connection between conventional pillows and neck issues and created a revolutionary solution called Pillo1 (www.pillo1.com) to address the problem. A study done in November, 2009 at St. John's Medical Plaza Sleep Disorders Center showed that Pillo1 re-educates the body to move into the optimal sleeping position and...

2009-12-01 12:31:18

A study in the Dec.1 issue of the journal Sleep shows that short, unpleasant, dreamlike mental activity occurs during sleepwalking and sleep terrors episodes, suggesting that people with these sleep disorders may be acting out dreamlike thoughts. Results show that 71 percent of participants reported at least one incident of dreamlike mental content associated with an episode of sleepwalking or sleep terrors, and the action in the dreamlike thoughts corresponded with the observed behavior. A...

2009-11-19 19:44:02

Sounds can penetrate deep sleep and enhance associated memories upon waking They were in a deep sleep, yet sounds, such as a teakettle whistle and a cat's meow, somehow penetrated their slumber. The 25 sounds presented during the nap were reminders of earlier spatial learning, though the Northwestern University research participants were unaware of the sounds as they slept. Yet, upon waking, memory tests showed that spatial memories had changed. The participants were more accurate in dragging...

2009-10-01 10:59:34

The study is the first to show that the impact of alcoholism on sleep is similar in both men and women A study in the Oct.1 issue of the journal Sleep shows that long-term alcoholism affects sleep even after long periods of abstinence, and the pattern of this effect is similar in both men and women. Results indicate that in long-term alcoholics who had not had a drink for up to 719 days, the percentage of slow wave sleep was significantly lower (6.6% in men, 11.1% in women) than in controls...

2009-04-16 15:32:53

Jet lag is the bane of many travelers, and similar fatigue can plague people who work in rotating shifts. Scientists know the problem results from disruption to the body's normal rhythms and are getting closer to a better understanding that might lead to more effective treatment. New University of Washington research shows the disruption occurs in two separate but linked groups of neurons in a structure called the suprachiasmatic nucleus, below the hypothalamus at the base of the brain. One...