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Archive for the ‘Sleep’ Category

Dec-17-2008

Allergies and Sleep Disruption

Posted by j.semo under Allergy, Asthma, Sleep, mattress

(Ivanhoe Newswire) — Allergy sufferers often complain of bothersome nasal blockages, but those allergies alone don’t account for increased risk of nighttime breathing problems.

A stuffy nose can lead to trouble sleeping, which in turn can lead to daytime drowsiness. Researchers at the University of Occupational and Environmental Health in Kitakyushu, Japan analyzed survey responses from 1,459 Japanese workers about their allergy and nasal obstruction concerns.

Participants were divided into four groups: those with allergies and nasal obstruction, those with nasal obstruction but no allergies, those with allergies but no nasal obstruction and those with neither nasal obstruction or allergies, who served as controls.

Those in both nasal-obstruction groups, with or without allergies, had higher odds of snoring and daytime sleepiness than the control group. However, there was no difference between the allergies-only and control groups.

“The present results strongly suggest that nasal obstruction causes sleep-disordered breathing and, thus, daytime sleepiness in individuals without allergic rhinitis as well as in those with allergic rhinitis,” study authors were quoted as saying.

SOURCE: Archives of Otolaryngology - Head & Neck Surgery, 2008;134:1254-125

If you wish to learn more about allergies and sleep disruption, visit a Wenatex Sleep Seminar.

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ScienceDaily (June 18, 2007) — Driving a vehicle requires coordination of horizontal eye movements and steering. Recent research  finds that even a single night of sleep deprivation can impact a person’s ability to coordinate eye movements with steering.
The study, authored by Mark Chattington of Manchester Metropolitan University, focused on six participants, who drove a winding route on a driving simulator. On the first day, they drove for one hour starting at 5 p.m. The subjects were kept awake the following night, and on day two, drove again at 5 p.m. for up to two-and-a-half hours. Their eye movements were monitored using a dashboard mounted eye tracker, and steering wheel movement was monitored through a precision potentiometer attached to the steering column.

The results showed that, in all drivers, sleep deprivation adversely affected their ability to coordinate eye movements when steering. There were instances of both acute and chronic reductions in the degree of coordination and in the time lead of eye movements over steering.

“The analysis of eye-steering coordination may provide a useful method of detecting when a driver is in danger of losing control of a vehicle due to fatigue, before the driver actually falls asleep,” said Chattington.

The amount of sleep a person gets affects his or her physical health, emotional well-being, mental abilities, productivity and performance. Recent studies associate lack of sleep with serious health problems such as an increased risk of depression, obesity, cardiovascular disease and diabetes.

An abstract of this research was presented June 11 at SLEEP 2007, the 21st Annual Meeting of the Associated Professional Sleep Societies (APSS),

Experts recommend that adults get between seven and eight hours of sleep each night to maintain good health and optimum performance.

Persons who think they might be suffering from a sleep disorder are encouraged to consult with their primary care physician, who will refer them to a sleep specialist

Source: American Academy of Sleep Medicine (2007, June 18). Sleep Deprivation Affects Eye-steering Coordination When Driving. ScienceDaily

If you wish to understand  how to sleep better, visiting a Wenatex Sleep Seminar will help you. Book here:

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Until next time

Be wise and have fun

Juan

Nov-30-2008

Sex or Sleep?

Posted by j.semo under Canada, Sleep, mattress

This is an interesting Canadian report about this subject.  Don’t miss it and let us know what YOU think.

Nov-19-2008

The Verdict: Sleep On It!

Posted by j.semo under Health, Insomnia, Sleep, Sleep Deprivation

Research from the University of Chicago showed that sleep helps the mind learn complicated tasks and helps people recover learning they otherwise thought they had forgotten over the course of a day.

Timothy Brawn, a graduate student in Psychology at the University of Chicago; Kimberly Fenn, now an Assistant Professor of Psychology at Michigan State University; and Daniel Margoliash, Professor in the Departments of Organismal Biology & Anatomy and Psychology at the University of Chicago, very cleverly used video games with over 200 college students, to demonstrate that:

1.- When trained in the morning, subjects showed an 8 percentage point improvement in accuracy immediately after training. However, after 12 waking hours following training, subjects lost half of that improvement, when tested in the evening. When subjects were tested the next morning 24 hours after training, they showed a 10 percentage point improvement over their pre-test performance.

2.- “The students probably tested more poorly in the afternoon because following training, some of their waking experiences interfered with training. Those distractions went away when they slept and the brain was able to do its work”, Nusbaum said.

3.- Among the students who received evening training, scores improved by about 7 percentage points, went to 10 percentage points the next morning, and remained at that level throughout the day.

4.- “In this study, we showed that if after learning, by the end of the day, people ‘forgot’ some of what was learned, a night’s sleep restored this memory loss,” Nusbaum said. “Furthermore, a night’s sleep protected memory against loss over the course of the next day.”

5.- “The latest study has been expanded to show that sleep benefits people learning complicated tasks as well”, Nusbaum said.

Until next time, be wise and have fun.

J. Semo

Source from the University of Chicago

Nov-12-2008

Sleep and Eyes

Posted by j.semo under OSA, Sleep Deprivation, news

Some days ago I had the opportunity to spend some minutes with an eminence in Ophthalmology in Brisbane, Dr. John Harrison.
During our conversation he mentioned how obstructive sleep apnea  may affect our eyes in different ways.

Doing some reading, I found some comments from Dr Waller an Ophthalmologist of the Mayo Clinic in the US who mentioned the following: “… our understanding of the mechanisms that link these disorders is minimal,”. “However, the recognition of these associations is important for primary care physicians, ophthalmologists, and sleep physicians. For patients with OSA, a routine eye examination to evaluate for early signs of glaucoma, particularly in the setting of visual loss or change, should be recommended. Patients with opthalmologic diseases known to be associated with sleep apnea should be screened clinically for sleep apnea and referred to a sleep center if signs or symptoms are present.”

Here we have it… it seems that we are always coming back to the concept that sleep is our “Master Healer.”

Are you sleeping enough and in the right way? A visit to a Wenatex Sleep Seminar may give you some great tips of how to let yourself nurture by your “Master Healer”.

Let me know what you think.

Be wise and have fun

Juan

Women definitely don’t have it easy! PMS, the immense pains associated with child birth, enchanting the days and nights of our families, menopause and the list goes on.

If all this is not enough, menopause may be accompanied by unbearable temperature fluctuations… day and night… Or could it be something else?

In an issue of Harvard Women’s Health Watch, February 2008, it was reported that of 102 women with menopause 56% had hot flashes and 53% also experienced sleep troubles.  Although the study is very small it reiterates the need to understand if sleep difficulties could not be the origin of hot flashes in some women.

Talking from experience, I also know of men battling with sleep disorders also complaining about hot flashes…

This study can only reiterate the importance of ensuring that we all find the best possible sleep available.

So to the question….could a healthier sleep environment help menopausal women to achieve better sleep? The answer can only be yes!

Until next time

Be wise and have fun

J. Semo

 

Yesterday, I arrived at the office and found a colleague  who looked like an owl with a blocked nose. It had nothing to do with a virus, but was as a result of his flying from Toronto to Brisbane via Edmonton, San Francisco and Los Angeles… a total of 17 hours real flying time, crossing over nine time zones!
Because there is lots of anecdotal evidence to explain jet lag, I decided to ask one of the Australian scientific institutions currently studying jet lag to give us their input. Dr. Sinead O’Connell from Flinders Partners advised the following:
“For a great deal of sleep disorders, jet lag, and even seasonal depression, a mistimed internal body clock, or circadian rhythm, is responsible. Our internal body clock dictates not only when we feel drowsy, but also when we feel alert.  An altered internal body clock can explain why some people have difficulty falling asleep at night (Delayed Sleep Phase Disorder) or why others may feel drowsy in the early evening and wake up early (Advanced Sleep Phase Disorder). It also explains the jet lag manifestations, since upon crossing time zones the body clock is in sync with departure times, rather than arrival times. Up to 80% of people on long haul flights succumb to jet lag.  NASA estimates you need one day for every time zone crossed to regain normal rhythm and energy levels.”
Further, Dr. Burges from the Biological Rhythms Research Laboratory from Chicago, USA, says that “humans typically take longer to re-entrain, when they travel eastward compared to travelling westward.” 
In another entry, we will talk about possible preventive measures and  jet lag therapies.

 

 

PS: The good looking young lady in the picture is NOT the colleague I was referring to… Sorry!

 

Well, I am always keen to find new and “out of the ordinary” studies, but this one definitely came out of left field. Professor Gerhard Kloesch and his colleagues at the University of Vienna studied eight unmarried, childless couples in their 20s and they came to the conclusion that “When men spend the night with a bed mate, their sleep is disturbed, whether they make love or not, and this impairs their mental ability the next day…”

The interesting thing is that all the males that were tested reported that they felt better sleeping with their partners.  Nevertheless, measurement of their relation to hormones and physical abilities demonstrated that they were better having slept alone.

In relation to the females tested, although they also experienced disturbed sleep when sharing the bed, they apparently managed to sleep more deeply when they did eventually drop off, since they claimed to be more refreshed than their sleep time suggested.

I would like your opinion…. Do you think that  bed sharing really drains your brains?

Be wise and have fun

Juan