Showing posts with label sleep. Show all posts
Showing posts with label sleep. Show all posts

Thursday, December 6, 2012

On the Web: Six Signs You May Need More Sleep






1. You're Ravenous -- If you find yourself hungry all day (and not because you skipped breakfast or have recently amped up your gym routine) it might be because you've been skimping on sleep.

Research presented at the 2010 meeting of the Society for the Study of Ingestive Behavior linked little shuteye with higher levels of the hormone ghrelin, the same one that triggers hunger, HuffPost reported.

This uptick in the hunger hormone seems to lead to not only increased snacking, but also a hankering for high-carb, high-calorie foods, according to a 2004 study, which may help explain why people who don't get enough sleep are at a greater risk of obesity.

2. You're Weepy --- Ever find yourself tearing up over an embarrassing TV commercial?

While women might be quick to blame PMS, it could be a lack of sleep sending your emotions into overdrive. A 2007 study found that sleep-deprived brains were 60 percent more reactive to negative and disturbing images, USA Today reported.

"It's almost as though, without sleep, the brain had reverted back to more primitive patterns of activity, in that it was unable to put emotional experiences into context and produce controlled, appropriate responses," Matthew Walker, senior author of the study, said in a statement.

3. You're Forgetful or Unfocused -- You might be tempted to blame your trouble focusing on your age or stress or your overflowing email inbox, but a lack of sleep could be the true culprit.

Too few hours in dreamland has been linked to a whole host of cognitive problems, like difficulty focusing and paying attention, confusion, lower alertness and concentration, forgetfulness and trouble learning, WebMD reports.

So next time you find yourself forgetting where you put your keys, consider how much sleep you got last night.

4. You Can't Shake That Cold -- If you keep coming down with the sniffles -- or can't seem to kick that never-ending case -- you might want to assess your sleep schedule. A 2009 study found that people who sleep fewer than seven hours each night have almost three times the risk of catching a cold than people who slept for at least eight hours, the LA Times reported.

5. You're Clumsier Than Usual -- First you knock the alarm clock off the dresser, then you spill the milk as you're pouring your cereal, then you stub your toe on the way out the door -- you've become a klutz overnight.

Researchers don't know exactly why, but sleepy people seem to "have slower and less precise motor skills," Clete Kushida, M.D., Ph.D., director of Stanford University Center for Human Sleep Research told Prevention. Reflexes are dulled, balance and depth perception can be a little wonky and since you may also have trouble focusing, reaction time can be slowed, meaning you can't quite catch the egg carton before it hits the floor.

6. You've Lost That Lovin' Feeling -- If you or your partner just can't get in the mood, and stress or an underlying health problem isn't to blame, you might want to spend some extra time between the sheets -- sleeping.

Both men and women who don't get their 40 winks experience a decreased sex drive and less interest in doing the deed, WebMD reports. A lack of sleep can also elevate levels of cortisol, the stress hormone, according to Everyday Health, which doesn't help in the bedroom either.

Tuesday, December 4, 2012

Does making your room completely dark help one to sleep better?



From the Zeology blog:


Q: I read Lights Out: Sleep, Sugar, and Survival and one of things the author recommend is making your bedroom completely dark. Has anyone tried this? Do you sleep better? Does it work?

A: There’s no doubt about the importance of a dark environment for sleeping.  When we expose our bodies to lower light conditions in the evenings, sleep comes more easily due to melatonin release after the sun goes down.

There’s no doubt about the importance of a dark environment for sleeping. In the pre-electric past, people naturally got sleepy and went to bed after the sun went down.

When we have a regularly scheduled sleep pattern mixed with lower light conditions in the evenings, sleep comes more easily due to melatonin release after the sun goes down, as part of our body’s circadian rhythms.

In order to keep this process on track, it’s best to limit exposure to bright light from computer monitors, TVs, and smartphones at night, as this can delay the release of melatonin leading to staying up later.

Limiting light exposure in the morning can also help you get more sleep, as the lack of light can delay the body’s natural call to “wake up”, allowing you to get more deeper, restful sleep. 

Using an eyemask, or turning your bed away from the window can help limit this exposure.

For those who work evening and night shifts, it’s best to sleep in rooms with heavy curtains that block all light, as well as wear blue-blocking sunglasses on the morning drive home, in order to prevent the stimulation of the waking circadian rhythm.

Related Content:

Monday, November 26, 2012

Playing With Light

I've decided to experiment with colored lenses to see if they affect my mood or ability to sleep.  So off I went to Amazon and eBay. and ordered up some cheap sunglasses.

Since I stare at the computer monitor all day, the first thing I ordered from Amazon was:

Sheer Vision Computer Glasses with Peach/Light Beige Polycarbonate Sheer Glare Anti Reflective Lenses, Clip on Flip up, Rectangle, A (54-56mm) B 47mm) -- cost $18.00






Product Description

Are you tired of letting the glare of your computer bother you all the time and then wondering why your vision is getting worse and worse? The consistent glare from a computer monitor isn't exactly the healthiest thing for your eyes. Visionary Supplies would like to introduce Sheer Vision.

Sheer Vision is a line of superior quality, anti-glare filter glasses for the computer eyewear market. Our company devoted the necessary time and resources to developing an Anti-Glare Computer Eyewear product that not only does the job, but is the most comfortable and stylish to wear. Here's how we did it...Sheer Vision is an enhanced polycarbonate plastic lens material with a unique coating applied to both the front and back surfaces. The coating creates a unique physical characteristic on the lens that resembles an oily residue or a drop of water in a puddle. This unique coating eliminates the glare from any computer monitor while the enhanced polycarbonate material blocks the harmful UV light rays coming from the screen.

These UV lights are normally very dangerous to the retina. The combination of these two materials on a single lens allows the user to view the computer monitor with a softness and a contrast between colors unlike ever before. Not only do Sheer Vision products reduce glare and UV light intake, but our state of the art lenses also reduce headaches that usually are caused by prolonged, unprotected exposure to the persistent onslaught of harmful rays from all computer monitors. All of our glasses come standard in a polycarbonate double-sided anti-reflective coating, scratch coating and UV protection.

..... And they didn't even mention those nasty office fluorescent lights.

Next, I read that blue light is a key to setting the circadian rhythm for sleep and also enhances a positive mood, so I bought these cool cat blue lenses to wear in the morning hours (not while using the computer) on eBay.

New Attitude Blue Lenses Sunglasses Motorcycle Black Spring Assisted Temples - cost $10.00



Then for night, in order to enhance the low-light "sunset" experience as the prelude to sleep, I plan to slip on orange lenses, which filter out the invigorating blue light from artificial nighttime lights such as electric lightbulbs and TV (a somewhat contradictory notion to absorbing that same blue light earlier in the day -- so we'll see what's what).


KD Original Orange Lenses Sunglasses Motorcycle With Storage Pouch 2128 -- cost: another $10.00



Net cost for everything -- $38.00. If anything seems to actually work, after a trial period, I may invest in high-dollar prescription ground versions of the colored lenses.




ZZ Top "Cheap Sunglasses"

https://www.youtube.com/watch?v=4vR-9NQAPIA

In the News: Elderly Sleep Habits Are Not Too Different From Younger Adults, Study Suggests


First we study waffles --- then we sleep...zzzzzzzz.......

The sleep studies below cite a percentage of "just 25%"  or "less than half" of seniors getting less than 7.5 hours of sleep a night -- that still seems like a problematically large percentage to this sometimes-sleep-disordered person. These "good news" reports and their interpretations of medical studies really have to be read carefully as far as their headline/conclusions are concerned....waffle...waffle....




LiveScience posted on Huffington Post: 11/26/20

A new study is debunking the perception that elderly people have wildly different sleep habits than their younger counterparts.

University of Pittsburgh researchers conducted a survey of 1,116 people ages 65 and older who are retired, and found that more than half of them get around 7.5 hours of sleep per night, at least, and sleep generally between 11 p.m. and 7:30 a.m. Adults are generally recommended to get between seven and nine hours of sleep a night.

"Our findings suggest that in matters regarding sleep and sleepiness, as in many other aspects of life, most seniors today are doing better than is generally thought," study researcher Timothy H. Monk, Ph.D., D.Sc., a professor of psychiatry at UPMC's Western Psychiatric Institute and Clinic, said in a statement. "The stereotype of most seniors going to bed at 8 p.m., sleeping very lightly and being unduly sleepy during the day may be quite inaccurate, suggesting that 60 really is the new 40."

The study, published in the journal Healthy Aging and Clinical Care in the Elderly, showed that just 25 percent of seniors surveyed reported sleeping fewer than 6.7 hours each night.

The researchers also found that a bigger predictor of sleep quality was a person's health, versus a person's age. And daytime sleepiness in the elderly may be more a result of things like medication side effects, not getting a good night's rest, or having some sort of illness, versus age.

In 2008, a study in the journal Current Biology showed that elderly people may simply need less sleep than younger people -- about an hour-and-a-half less, to be exact, LiveScience reported. The findings have implications for perceptions of insomnia among the elderly, study researcher Elizabeth Klerman, of Brigham and Women's Hospital, told LiveScience:

"There are definitely older people with insomnia," Klerman told LiveScience. "However there may also be some older people who 'create' insomnia if they believe that they 'need' eight to nine hours of sleep and therefore spend more time in bed (lying awake) than needed to achieve the amount of sleep 'needed.'"

While the new study showed that elderly people generally get the same amounts of sleep and sleep around the same times as younger people, a previous study from Mayo Clinic researchers showed that many may also experience sleep disorders.

That study, presented in 2009 at the annual meeting of the American Academy of Neurology, showed that 59 percent of 70-to-89-year-olds included in the study experienced a sleep disorder (not including insomnia).

Wednesday, November 21, 2012

Sleep Disturbance Linked to Aging Eye Lens


Philips goLITE BLU Light Therapy Device
Sleep disturbance correlated significantly with reduced blue light transmission to the retina resulting from aging and yellowing of the lens, Danish investigators reported.

Every one% increase in blue light lens transmission reduced the odds of sleep disturbance by five%. The association was similar across age groups and remained significant after controlling for a variety of potential confounders, as reported in the September issue of Sleep.

"To translate the odds ratios into a clinical example, a 50-year-old, nonsmoking, nondiabetic female with a low risk of ischemic heart disease who was in the 97.5% upper normal range of blue light lens transmission ... had a risk of sleep disturbances of 16.4%," Line Kessel, MD, PhD, of Glostrup Hospital and the University of Copenhagen, and co-authors wrote.

"[In contrast] a similar ... 50-year-old female who was in the 2.5% lower normal range of blue light lens transmission ... had a risk of having sleep disturbances of 37.9%."

The odds of sleep disturbance also increased significantly with the extent of autofluorescence, a measure of lens transmission and yellowing.

Regulation of sleep patterns and circadian rhythms occurs through the retinohypothalamic tract in response to stimulation of retinal ganglions, primarily by blue light.

With aging, the lens acquires a yellowish discoloration from accumulation of chromophores that preferentially absorb in the short wavelength region of the light spectrum. The authors hypothesized that lens yellowing might act as a filter for blue light in older people, who are more prone to sleep disturbance.

"Theoretically, the aging process of the lens of the eye may be an important causative factor in sleep disorders," the authors wrote.

To examine the relationship between lens aging and sleep disturbance, investigators recruited participants from an ongoing epidemiologic study (Inter99 Eye Study) of associations between ophthalmic parameters and health.

The study of lens aging and sleep disturbance involved 970 people, ages 30 to 60. The study population consisted of 142 participants with a high risk of ischemic heart disease, 107 with newly diagnosed type 2 diabetes, 11 participants with a history of diabetes, 147 participants with impaired glucose tolerance, and a miscellaneous group of 61 participants. The control group had 502 participants.

Investigators assessed sleep disturbance by means of questionnaires and prescriptions for sleeping medications. Lens aging was determined by autofluorometry. Sleep disturbance was defined as answering "yes" to "having trouble sleeping and/or purchasing a sleep medication in the past year."

Overall, the prevalence of sleep disturbance was 24.4%. and more than 80% of participants with sleep disturbances said the problem occurred frequently and required treatment with sleep medication. The prevalence ranged from a high of 32.5% of participants, ages 55 to 60, to a low of 15.7% in participants ages 30 to 35 (P=0.0002).

Sleep disturbance affected women more often than men (32.2% versus 18.4%, P<0.0001). It also was more common in participants with diabetes (30.7% versus 22.5% for normoglycemic individuals, P=0.016) and smokers (28.6% versus 21.0% of nonsmokers, P=0.007).

The inverse association between sleep disturbance and blue light lens transmission was represented by an odds ratio (OR) of 0.95 per 1% increase in lens transmission (95% CI 0.93 to 0.97, P<0.0001).

Adjustment for age, sex, diabetes, smoking, and risk of ischemic heart disease resulted in an OR of 0.97 (95% CI 0.95 to 0.99, P=0.016).

The findings are consistent with the hypothesis that decreased blue light transmission reduces stimulation of retinal ganglions containing melanopsin, which has a key role in photoentrainment of circadian rhythms.

"Melanopsin is stimulated by predominantly blue light with a maximum absorption around 480 nm in humans, the very part of the visible spectrum that is mostly affected by the aging process of the human lens," the authors wrote.

"The results of the present study indicate that the spectral characteristics of the light reaching the retina, and specifically the total amount of blue light that penetrates the refractive media of the eye, may have a profound impact on sleep quality, most likely mediated via reduced ocular photic regulation of melatonin secretion," they added.

"Our results support that choosing the right indoor lighting conditions may have a beneficial effect on sleep and that blue light therapy might be used to modulate circadian sleep disorders," they concluded.

The study had some limitations including the risk that some patients were misclassified because sleeping medication may be used for other conditions, such as benzodiazepines for anxiety.


The study received no industry support, and the authors had no relevant disclosures.

Tuesday, November 13, 2012

Give Yourself a $60,000 "Nap Raise"





In Train Your Brain to Get Happy, the chapter on “Sleep” first reminds the reader why sleep is important, including the same reasons we’ve all heard about -- reducing stress, slowing the aging process, and losing weight, but also adding this powerful new one:

“An extra hour of sleep per day — the equivalent of a nice, long nap — will give you a ‘happiness boost’ comparable to a $60,000 annual raise…” (p. 154). 

The chapter also explains how the different stages of sleep work to restore and rest the brain as well as the benefits of dreaming. 

Friday, October 19, 2012

Amanda Gardner: Power Naps May Boost Right-Brain Activity




Posted: 10/19/2012 by Amanda Gardner

We’ve all been there: After struggling over a problem for hours, we rest our eyes for a few minutes and suddenly the answer is lying before us, clear as day.

This common phenomenon has contributed to the idea of the so-called power nap, a quick snatch of rest that stops short of deep sleep yet somehow manages to refresh and stimulate.

Although there is much about the power nap that remains a mystery, researchers have begun to uncover the brain processes behind the little miracles it produces.

The latest research, presented today at an annual meeting of neuroscientists, may help explain the mental spark that sometimes occurs during a nap. Researchers monitoring the brain activity of 15 at-rest individuals found that the right side of their brain -- the hemisphere most associated with creativity -- chattered busily to itself as well as to the left hemisphere, which remained relatively quiet.

“The right side of the brain was better integrated,” says study author Andrei Medvedev, Ph.D., an assistant professor at Georgetown University’s Center for Functional and Molecular Imaging, in Washington, D.C.

Medvedev had expected the left side of the brain to be better integrated, since that hemisphere tends to be dominant in right-handed people (and vice versa in left-handed people). All but two of the study participants -- and fully 95 percent of the general population -- are right-handed.

The division of labor between the right and left sides of the brain isn’t as clear-cut as once thought. Generally, though, the right hemisphere is associated with creative tasks, such as visualization and big-picture thinking, while the left is more analytic, specializing in numbers and language processing.

It’s not yet clear how, or if, the new study results fit into this framework. But Medvedev speculates that the right brain may be performing important “housecleaning” tasks during a nap. The most important of these is probably the consolidation of memories, although other tasks are probably involved as well, he says.

This hypothesis jibes with the current understanding of the essential role that sleep plays in memory formation, says Suresh Kotagal, M.D., a professor of neurology at the Mayo Clinic in Rochester, Minnesota.

“We are exposed to certain pieces of information, but if we get to sleep on it, the sleep seems to facilitate the transfer of information from the short-term memory bank into the more permanent memory bank,” says Kotagal, who was not involved in the study.

Jonathan Friedman, M.D., director of the Texas Brain and Spine Institute, in Bryan, says the new findings come at a time of growing interest in the neuroscience of sleep.

“Emerging scientific evidence suggests that naps -- even very short ones -- significantly enhance cognitive function,” Friedman says. “Increasing understanding of how sleep improves brain function may someday allow us to harness this effect, and the current study may open one of many doors in this regard.”

Medvedev and his colleagues used a type of brain imaging known as near-infrared spectroscopy, which involves placing optical fibers similar to electrodes symmetrically around a person’s scalp. These “optodes” send infrared light through the brain and measure how much light returns.

The intensity of light bouncing back provides an estimate of the blood flow in different regions of the brain. Blood flow, in turn, is an indicator of how active those regions are.
The study results, which Medvedev presented at the Neuroscience 2012 meeting in New Orleans, should be considered preliminary. They haven’t been peer-reviewed by other experts in the field, and they’ll need to be replicated in other studies before firm conclusions can be drawn.

But they do shine a light -- infrared light, in this case -- on how the two sides of our brain interact when we’re at rest. “This may change our perspective of the brain,” Medvedev says. “We may just conclude that the sub-dominant part of the brain may also be important.”

Power Naps May Boost Right-Brain Activity was originally published on Health.com

Tuesday, September 25, 2012

David K. Randall: Rethinking Sleep


Vincent van Gogh , The Siesta (after Millet), December 1889-January 1890, oil on canvas, H. 73; W. 91 cm, Musée d'Orsay.

Sometime in the dark stretch of the night it happens. Perhaps it’s the chime of an incoming text message. Or your iPhone screen lights up to alert you to a new e-mail. Or you find yourself staring at the ceiling, replaying the day in your head. Next thing you know, you’re out of bed and engaged with the world, once again ignoring the often quoted fact that eight straight hours of sleep is essential.

Sound familiar? You’re not alone. Thanks in part to technology and its constant pinging and chiming, roughly 41 million people in the United States — nearly a third of all working adults — get six hours or fewer of sleep a night, according to a recent report from the Centers for Disease Control and Prevention. And sleep deprivation is an affliction that crosses economic lines. About 42 percent of workers in the mining industry are sleep-deprived, while about 27 percent of financial or insurance industry workers share the same complaint.

Typically, mention of our ever increasing sleeplessness is followed by calls for earlier bedtimes and a longer night’s sleep. But this directive may be part of the problem. Rather than helping us to get more rest, the tyranny of the eight-hour block reinforces a narrow conception of sleep and how we should approach it. Some of the time we spend tossing and turning may even result from misconceptions about sleep and our bodily needs: in fact neither our bodies nor our brains are built for the roughly one-third of our lives that we spend in bed.

The idea that we should sleep in eight-hour chunks is relatively recent. The world’s population sleeps in various and surprising ways. Millions of Chinese workers continue to put their heads on their desks for a nap of an hour or so after lunch, for example, and daytime napping is common from India to Spain.

One of the first signs that the emphasis on a straight eight-hour sleep had outlived its usefulness arose in the early 1990s, thanks to a history professor at Virginia Tech named A. Roger Ekirch, who spent hours investigating the history of the night and began to notice strange references to sleep. A character in the “Canterbury Tales,” for instance, decides to go back to bed after her “firste sleep.” A doctor in England wrote that the time between the “first sleep” and the “second sleep” was the best time for study and reflection. And one 16th-century French physician concluded that laborers were able to conceive more children because they waited until after their “first sleep” to make love. Professor Ekirch soon learned that he wasn’t the only one who was on to the historical existence of alternate sleep cycles. In a fluke of history, Thomas A. Wehr, a psychiatrist then working at the National Institute of Mental Health in Bethesda, Md., was conducting an experiment in which subjects were deprived of artificial light. Without the illumination and distraction from light bulbs, televisions or computers, the subjects slept through the night, at least at first. But, after a while, Dr. Wehr noticed that subjects began to wake up a little after midnight, lie awake for a couple of hours, and then drift back to sleep again, in the same pattern of segmented sleep that Professor Ekirch saw referenced in historical records and early works of literature.

It seemed that, given a chance to be free of modern life, the body would naturally settle into a split sleep schedule. Subjects grew to like experiencing nighttime in a new way. Once they broke their conception of what form sleep should come in, they looked forward to the time in the middle of the night as a chance for deep thinking of all kinds, whether in the form of self-reflection, getting a jump on the next day or amorous activity. Most of us, however, do not treat middle-of-the-night awakenings as a sign of a normal, functioning brain.

Doctors who peddle sleep aid products and call for more sleep may unintentionally reinforce the idea that there is something wrong or off-kilter about interrupted sleep cycles. Sleep anxiety is a common result: we know we should be getting a good night’s rest but imagine we are doing something wrong if we awaken in the middle of the night. Related worries turn many of us into insomniacs and incite many to reach for sleeping pills or sleep aids, which reinforces a cycle that the Harvard psychologist Daniel M. Wegner has called “the ironic processes of mental control.”

As we lie in our beds thinking about the sleep we’re not getting, we diminish the chances of enjoying a peaceful night’s rest.

This, despite the fact that a number of recent studies suggest that any deep sleep — whether in an eight-hour block or a 30-minute nap — primes our brains to function at a higher level, letting us come up with better ideas, find solutions to puzzles more quickly, identify patterns faster and recall information more accurately. In a NASA-financed study, for example, a team of researchers led by David F. Dinges, a professor at the University of Pennsylvania, found that letting subjects nap for as little as 24 minutes improved their cognitive performance.

In another study conducted by Simon Durrant, a professor at the University of Lincoln, in England, the amount of time a subject spent in deep sleep during a nap predicted his or her later performance at recalling a short burst of melodic tones. And researchers at the City University of New York found that short naps helped subjects identify more literal and figurative connections between objects than those who simply stayed awake.

Robert Stickgold, a professor of psychiatry at Harvard Medical School, proposes that sleep — including short naps that include deep sleep — offers our brains the chance to decide what new information to keep and what to toss. That could be one reason our dreams are laden with strange plots and characters, a result of the brain’s trying to find connections between what it’s recently learned and what is stored in our long-term memory. Rapid eye movement sleep — so named because researchers who discovered this sleep stage were astonished to see the fluttering eyelids of sleeping subjects — is the only phase of sleep during which the brain is as active as it is when we are fully conscious, and seems to offer our brains the best chance to come up with new ideas and hone recently acquired skills. When we awaken, our minds are often better able to make connections that were hidden in the jumble of information.
Gradual acceptance of the notion that sequential sleep hours are not essential for high-level job performance has led to increased workplace tolerance for napping and other alternate daily schedules.

Employees at Google, for instance, are offered the chance to nap at work because the company believes it may increase productivity. Thomas Balkin, the head of the department of behavioral biology at the Walter Reed Army Institute of Research, imagines a near future in which military commanders can know how much total sleep an individual soldier has had over a 24-hour time frame thanks to wristwatch-size sleep monitors. After consulting computer models that predict how decision-making abilities decline with fatigue, a soldier could then be ordered to take a nap to prepare for an approaching mission. The cognitive benefit of a nap could last anywhere from one to three hours, depending on what stage of sleep a person reaches before awakening.

Most of us are not fortunate enough to work in office environments that permit, much less smile upon, on-the-job napping. But there are increasing suggestions that greater tolerance for altered sleep schedules might be in our collective interest. Researchers have observed, for example, that long-haul pilots who sleep during flights perform better when maneuvering aircraft through the critical stages of descent and landing.

Several Major League Baseball teams have adapted to the demands of a long season by changing their sleep patterns. Fernando Montes, the former strength and conditioning coach for the Texas Rangers, counseled his players to fall asleep with the curtains in their hotel rooms open so that they would naturally wake up at sunrise no matter what time zone they were in — even if it meant cutting into an eight-hour sleeping block. Once they arrived at the ballpark, Montes would set up a quiet area where they could sleep before the game. Players said that, thanks to this schedule, they felt great both physically and mentally over the long haul.

Strategic napping in the Rangers style could benefit us all. No one argues that sleep is not essential. But freeing ourselves from needlessly rigid and quite possibly outdated ideas about what constitutes a good night’s sleep might help put many of us to rest, in a healthy and productive, if not eight-hour long, block.

David K. Randall is a senior reporter at Reuters and the author of “Dreamland: Adventures in the Strange Science of Sleep.”

Friday, September 7, 2012

What Is the Ideal Time To Go To Bed?


2012-08-10-jthibodeau.jpeg

by Jason Thibodeau, Software developer, science geek
  Studies on circadian rhythms suggest that sleeping 10 PM to 6 AM will give the most returns. This considers not only when the body appears to be the most geared for sleep, but also when the body is ready for other activities in the day.

For example, it appears we are most alert around 10 AM. It has been suggested that this time is ideal for performing your most challenging tasks of the day. The late afternoon appears ideal for physical exercise. Being awake and rested, and on a schedule, can help you take advantage of your highs and lows throughout the day.

Studies of the health impacts of working night shift have shown various negative factors, including higher risks of developing chronic health problems. A well known 2001 study suggested that women who worked graveyard shift had a significantly higher risk for developing breast cancer, due to exposure to light, suppressing the normal nocturnal release of melatonin, which in turn has an impact on estrogen release.

http://jnci.oxfordjournals.org/c...

A BBC Horizon episode "The Secret Life of your Body Clock" attempts to answer the question of what we should be doing at what times of the day, in regards to our internal "body clock."

http://www.bbc.co.uk/programmes/...
(The complete episode may be found on Youtube. Search: "BBC Horizon body clock")
http://en.wikipedia.org/wiki/Cir...

Morning larks and night owls

The majority of people appear to be "morning larks," who optimally would sleep at 10 PM and rise at 6 AM. However, it is estimated that 10-20% of the population are what are referred to as "night owls," people who are more mentally alert later in the day. Night owls are reported to be "less happy" than morning larks, often waking with a scowl in early hours.

By age 60, most people are morning types, the researchers found. Only about seven percent of young adults are morning larks, but as the population ages, this switches -- in the older years only about seven percent of the population are still night owls.

Since light exposure appears to be the trigger for many of our biological processes, this article suggests a regular waking time and exposure to natural light in the early morning could help "convert" a night owl into a morning lark. The reason for the difference is not known.

http://news.discovery.com/human/...

Further reading on delayed sleep phase syndrome:

http://en.wikipedia.org/wiki/Del...

Sunday, August 26, 2012

California Literary Review Jeff Warren "The Head Trip" Interview

CLR INTERVIEW: Jeff Warren is a producer for CBC (Canadian Broadcasting Corporation) radio. In his new book, The Head Trip, he writes about his personal exploration of the various states of human consciousness. Below is his interview with the California Literary Review.

The Head Trip by Jeff Warren
The Head Trip: Adventures on the Wheel of Consciousness
by Jeff Warren, Random House, 400 pp.

What do you mean by the term “Wheel of Consciousness” in the title of your book?

The Wheel of Consciousness is my metaphor for some of the dramatic and dramatically strange ways our awareness changes through sleeping, dreaming and waking. Picture a wheel in the centre, folded, involuted. Around it is a jagged halo that represents the brain’s electrical activity. The wheel is the brain, it pushes up from below, changing the contour of consciousness from one moment to the next. The wheel is spun, in part, by our biological clocks, which move us through changing levels of alertness during the day and the various stages of sleep at night. It is a hardware model, and one of the things I discover on my adventures is this model is incomplete: the brain—at least the reductive modular view of the brain—is not enough. Because pushing down in the other direction is the mind itself, a still-mysterious top-down catalyst for all kinds of unusual special effects within awareness.

The thesis of my book is that consciousness is far more variegated and expansive that most of us realize. Waking, sleeping and dreaming are like three points of a huge triangular table, on whose surface we careen like billiard balls. Often these balls move automatically, little Newtonian machines in a cause-and-effect trance. But we’re capable of changing our course at any time, capable, in fact, of levitating right off the table and zinging into a much larger and stranger room. There is nothing religious about this – these things are available for anyone to experience, and neurobiology is beginning to provide a loose sort of explanatory framework.

The Head Trip is about what happens when you investigate consciousness from experience forward, instead of—in the style of the vast majority of consciousness books—theory back. My experiences—my adventures—take me all over the world, from lucid dreaming workshops to meditation retreats, neurofeedback clinics, sleep laboratories, hypnotist chairs and more. I eventually realize that each of the twelve states of consciousness I profile has its own specialized brand of knowledge and insight. They have personal as well as scientific value, which should hardly be surprising, though it was for me, perhaps because, like so many of us, I have a tendency to think and act and live on automatic.

Wheel of Consciousness
The “Wheel of Consciousness”

Are certain states of consciousness more “real” or “authentic” than others?

This is one of those simultaneously complex and simple questions that can be answered in one gnomic line (if you’re a mystic), one efficient paragraph (if you’re a scientist) or a rambling ten-volume treatise (if you’re a philosopher), to the dissatisfaction of everyone.
From the point of view of the subject, all experience is real, insofar as it is has a felt, experienced quality. Where it gets fascinating is the waking / dreaming distinction. When we fall asleep sensory input is removed and we move through a world simulation constructed from memory and experience. We call this The Dream. It feels perfectly real, has a vivid fully immersive quality that most of us don’t question—that is, unless we’re able to wake ourselves up inside the dream and conduct a proper lucid investigation. But that’s another matter.
In waking we tend to think The Dream vanishes, evaporates in daylight like morning dew on grass. But it doesn’t. The unsettling Matrix-esque truth here is that we all live in world-simulations, pretty much all of the time. The brain isn’t out in the world; it’s locked in a dark box in your head. Patterns of information ting against our senses and get routed into the brain for model assembly. One of the core insights of the science of perception is our models of the world are heavily interpreted—our own expectations and cultural mores and personal history shape “The Real,” so that in some ways our personal little submarines move through an ocean of our own making. This is The Dream, subtle but always there, seeping into our interiors, influencing the waking world in ways we are only beginning to appreciate.

One state of consciousness you describe in your book is called “The Watch.” What is it?

All of us wake up in the night, though these wake ups are usually so short we forget they ever happen. But sometimes they’re longer, in fact there is intriguing scientific and historical evidence which suggests that pre-Industrial Revolution the great majority of humankind may once have slept in a bi-modal sleep pattern, that is, we slept once in early evening, and then again in the early morning. In between we rose to a peculiar state of consciousness called the Watch. In the Watch high levels of prolactin circulate in the brain, thought by one scientist to contribute to a kind of meditative calm. If the state is celebrated and not simply endured it can be luxurious: we skip along the surface of sleep, bobbing back and forth between waking and dreaming, our waking thought informed my dreaming images, and our dream ideation shaped by waking concerns. It’s as if we are looking inside but also out, each state mixing into the other in all kinds of novel and wonderful ways.

You mention that its absence may explain the insignificance of mythology in our lives.

Yes, in the sense that dreams are a great oceanic source of mythology and fantasy. Imagine how it may once have been. Warm in our beds we wake from The Dream. The darkness provides a screen onto which we can project lingering images and scenarios. In this protected mid-night eddy, where few daytime concerns intrude, we turn the details of our dream over and over in our minds. We make new connections, we steep in emotional atmospheres. We slip back and forth between worlds. Dreams are the original teaching stories. But in 21st century life most people discount them. It’s a shame; like myths, they have much to tell us. Plus who couldn’t use a little more lounging in bed?

The chapter on lucid dreaming was fascinating. What is a lucid dream and how have scientists verified its existence?

When we think about our dreams they often have a washed-out, etiolated quality. But this is not what dreams are like—this is what our memories of dreams are like. Dreams when we’re actually in them are vivid and thrillingly real. The best vantage from which to see this is from the lucid dream, when we “wake up” inside a dream and recognize the manufactured nature of our dream surroundings. Ordinarily in dreams we race around like headless chickens, running from perceived threats, pleading with 10-ton bowls of porridge or whatever. The point is we don’t think very carefully about the larger – often absurd – context. In lucid dreaming we are better witnesses. Various waking capacities – self-consciousness, rationality, memory, agency – are back online, and we can wander through the dream interrogating dream characters, conducting experiments, whatever. Most people fly around looking for opportunities to have sex. I usually strike out in that regard, in fact my dream characters almost universally ignore me. Perhaps this is because I am disappointingly uncoordinated in my lucid dreams; I walk like a drunk, crashing into hedges and buildings, and when I try to fly I seize up like a voodoo doll, flip onto my back, and summersault helplessly while all around dream forces hum with oblique intent. Thus I have democratized the state for losers everywhere.

Still, the fun house quality of the mind at night is only part of its appeal; lucid dreaming also has scientific value. It is an unparalleled opportunity to examine some of the operating rules of consciousness—after all, there is no sensory input to overwhelm the normal mechanisms of attention. The sensory tide has receded; all kinds of psychological crustaceans lie revealed on the exposed stretch of beach, to use an admittedly weird and probably inappropriate metaphor. One of the things I most enjoyed about writing The Head Trip was trying to identify the psychological “laws” which govern the dream world, universal operating rules roughly equivalent to the laws of physics in waking.

The story of how sleep scientists verified lucid dreaming’s existence is fascinating and a little too involved to get into here. It involves moving eyeballs and crackling EEG machines and can be read about on dozens of dodgy websites. In fact lucid dreaming and altered states in general are paragons of internet knowledge. My book is a distillation of all that ephemera, filtered through the sensibilities of reliable investigators.

What is a “Pure Consciousness Event?”

Earlier I referred to waking, sleeping and dreaming as forming three corners of a huge triangle within which all non-drug induced alterations of consciousness take place. In fact, this is not quite right. In Indian philosophy there is reference to a “fourth state.” This is Pure Consciousness, a term coined by the Transcendental Meditators but one that applies to a common experience found in practically every meditative tradition and regularly visited by initiates.

It is a deeply mysterious state, more mysterious even than slow wave sleep. Science has very little to say on the matter, though it is beginning to take reports of Pure Consciousness seriously. Essentially a Pure Conscious Event is what happens when all the content of consciousness—all the thoughts and sensory input and emotions and whatever else – when all that recedes and you are left with an empty luminous void. To extend the beach metaphor I used above, first the sensory input waters recede, but then the beach itself recedes, it’s like a great mystical existential tide that sucks back all psychological matter so that the observing “I” is left floating in space. In fact even the observing “I” is gone, even space. It’s paradoxical and profound and of no help whatsoever if you’re trying to order a pizza.

Is it a realistic goal for us to direct our own states of consciousness?

Yes it is. The brain’s plasticity is thrilling. You can learn new mental habits and burn them into your cortex, you can reroute old neural grooves. Most of us fire down our neural luges like Jamaican bobsledders. We hug the track, we imagine (if we imagine at all) that our course is predetermined. But with a little practice you can fly right over the lip and set out on a new path. Fuck the judges! Meditation teaches you this, so does neurofeedback, and hypnosis and lucid dreaming. These are all techniques for self-regulation, tools for changing our experience of waking, dreaming and sleeping in ways that are profoundly hopeful and useful and cool and fun.
Of course you may drive yourself insane trying to get there, but that’s why we have teachers, and books—books like mine, to draw a road map and indicate the sharp turns and the many swamps and farmer’s fields into which one may crash one’s car, as I crashed mine, where in fact, my car is right now, idling but on its last drops of petrol, driver’s hands on the heat vent, eyes on the gathering darkness. Time to ditch the car and set out on foot; some of the best trips begin at night.

(Note: car crashes and roadmaps should not be confused with bobsled and luges, two different through perilously similar metaphors)

Related Links: The Head Trip website.

"The Head Trip," A Tour Through Your Mind, Youtube Video



Author Jeff Warren.

A tour through sleeping, dreaming and waking consciousness with Jeff Warren, at the Toronto launch of his "The Head Trip: Adventures on the Wheel of Consciousness" (Random House, 2007). For author contact, speaking information and reviews of the book, go to: www.headtrip.ca


http://www.youtube.com/watch?v=KhZ4yo1vfwA

Saturday, August 25, 2012

Sleep Game Changer: "The Head Trip"

I've written before about how little research has been done on sleep and chronic insomnia. While in Anchorage I found a real winner (as the review below claims, "an instant classic") at the Title Wave used book store, Jeff Warren's The Head Trip Adventures on the Wheel of Conciousness.

I'm only part way into it, but already, I highly recommend this book for anyone with sleep issues, as well as Gayle Greene's Insomniac.



From Amazon, "A world at once familiar and unimaginably strange exists all around us–and within us. It is the world of consciousness, a protean mental landscape that each of us knows intimately in bits and pieces yet understands in its totality scarcely at all. Tied to the body and the brain, consciousness is nonetheless beyond our ability to measure or quantify. Despite the attempts of scientists and mystics, poets and dreamers, crackpots and geniuses, to map its contours and explain its secret workings, the mind remains mysterious. And the more we learn about it, the more mysterious it becomes.

But that is not to say that we know nothing about consciousness. In fact, as gonzo science journalist Jeff Warren demonstrates in this A provocative, often hilarious, and always fascinating synthesis of cutting-edge research and personal experience, just how much we do know is little short of astonishing. And when Warren fits the pieces together, the implications of that knowledge are, well, mind-blowing.

Warren begins with the insight that consciousness is not a simple on-off proposition, with rigid demarcations separating waking awareness from the murky depths of sleep, but rather a round-the-clock continuum regulated by natural biorhythms. He then sets out to explore, and to experience for himself, the seemingly miraculous, all-but-untapped potential of the human mind.

From the full-immersion virtual realities of lucid dreaming to the esoteric disciplines of Eastern meditative practices that have reached outposts of consciousness far beyond the grasp of Western science, from techniques of hypnosis and neurofeedback to such exotic states of awareness as the Watch and the Pure Conscious Event, Warren takes us on an incredible journey through our own heads–a journey conducted with the adventurous spirit and intellectual curiosity of a Darwin coupled with the sensibility of a stand-up comedian.

Part user’s manual and part travel guide, The Head Trip is an instant classic, a brilliant summation of consciousness studies that is also a practical guide to enhancing creativity, mental health, and the experience of what it means to be human. Many books claim that they will change you. This one gives you the tools to change yourself.