MedWorm provides a medical RSS filtering service. Over 6000 RSS medical sources are combined and output via different filters. This feed contains the latest medical blog items that have been tagged with 'circadian'. Sat, 03 Sep 2011 02:03:21 +0100 http://www.medworm.com/index.php?rid=4610817&cid=t_135921_88_f&fid=38129&url=http%3A%2F%2Ffeedproxy.google.com%2F%7Er%2Flifeinthefastlane%2FWZHV%2F%7E3%2FN_s6ruYJNmc%2F Travelling with fit, well hydrated, socially capable, phototropic, extrovert athletes in a Westward direction (to South Africa) should, in theory, be a fairly straight forward exercise... (Source: Life in the Fast Lane) Life in the Fast Lane blogs http://www.medworm.com/rss/comments.php?id=4610817 Fri, 18 Mar 2011 07:45:46 +0100 4610817 http://www.medworm.com/index.php?rid=4600583&cid=t_135921_109_f&fid=34761&url=http%3A%2F%2Ffeeds.feedblitz.com%2F%7E%2F25094966%2F0%2Fneuromarketing%7ESelling-to-the-Sleepy.htm Late-night infomercials and commercials often promote subjects like buying real-estate with no money down and other get-rich quick schemes. While these promotions are broadcast in the wee hours because air time is cheaper and more readily available, it turns out there’s solid science behind this timing. In a new study, Duke university researchers found significant [...] CommentsI'm an old-school insomniac (the only time I ever slept ... by JenniferRelated StoriesUse Ratings to Improve REAL SatisfactionWhen Loyalty Points Beat Price DifferencesBorder Bias: How to Beat It (Source: Neuromarketing) Neuromarketing blogs http://www.medworm.com/rss/comments.php?id=4600583 Wed, 16 Mar 2011 19:06:50 +0100 4600583 http://www.medworm.com/index.php?rid=4570296&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2011%2F03%2Ffind-sleep-as-you-spring-forward-for.html (Source: Sleep Education) Sleep Education blogs http://www.medworm.com/rss/comments.php?id=4570296 Thu, 10 Mar 2011 22:48:00 +0100 4570296 http://www.medworm.com/index.php?rid=4512395&cid=t_135921_87_f&fid=39187&url=http%3A%2F%2Fgetbetterhealth.com%2Fcoronary-stent-thrombosis-and-your-body-clock%2F2011.02.23 Add coronary stent thrombosis to the list of cardiac events influenced by circadian rhythms, with more events occurring during the early morning hours and in a summertime window of late July and early August. Coronary stent thrombosis joins several other adverse cardiac events that also follow a circadian pattern, such as stroke, unstable angina pectoris, acute myocardial infarction and sudden cardiac death, according to researcher published in JACC: Cardiovascular Interventions. Most studies that addressed circadian variations in cardiovascular disease were done before the advent of stents, so, researcher from Mayo Clinic-Rochester conducted a retrospective analysis of medical records and the clinic’s registry, finding 124 patients who presented with coronary stent thrombosis betwee... Better Health blogs http://www.medworm.com/rss/comments.php?id=4512395 Wed, 23 Feb 2011 14:00:00 +0100 4512395 http://www.medworm.com/index.php?rid=4405773&cid=t_135921_87_f&fid=39187&url=http%3A%2F%2Fgetbetterhealth.com%2Ffeeling-s-a-d-lighten-up-if-it%25e2%2580%2599s-seasonal-affective-disorder%2F2011.01.27 This picture shows the view from my office window in Boston: Dull, dreary, and depressing — at least on overcast days like today. Lack of light is one of the reasons that people feel mentally foggy. One of the bloggers I follow, Rachel Zimmerman of WBUR’s CommonHealth blog, recently wrote that she’s been drinking three times as much coffee as usual. In addition to imbibing more caffeine, I’ve been trying to boost my spirits and alertness with mid-day runs to the snack machine (not the best strategy, in case you’re wondering). At this time of year, many people aren’t just foggy and sad — they’ve got SAD, or seasonal affective disorder. About half a million Americans — women more often than men — are diagnosed with seasonal affective disorder each year. Ma... Better Health blogs http://www.medworm.com/rss/comments.php?id=4405773 Thu, 27 Jan 2011 22:00:27 +0100 4405773 http://www.medworm.com/index.php?rid=4196706&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2010%2F11%2Fclock-gene-levels-linked-to-insomnia.html (Source: Sleep Education) Sleep Education blogs http://www.medworm.com/rss/comments.php?id=4196706 Tue, 23 Nov 2010 16:52:00 +0100 4196706 http://www.medworm.com/index.php?rid=3972633&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2010%2F09%2Fted-talks-sleep-circadian-rhythms.html (Source: Sleep Education) Sleep Education blogs http://www.medworm.com/rss/comments.php?id=3972633 Wed, 15 Sep 2010 18:15:00 +0100 3972633 http://www.medworm.com/index.php?rid=3911452&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2010%2F08%2Ftrapped-chilean-miners-struggle-to.html (Source: Sleep Education) Sleep Education blogs http://www.medworm.com/rss/comments.php?id=3911452 Fri, 27 Aug 2010 15:38:00 +0100 3911452 http://www.medworm.com/index.php?rid=3902719&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2010%2F08%2Fsevere-alcoholism-destroys-sleep.html (Source: Sleep Education) Sleep Education blogs http://www.medworm.com/rss/comments.php?id=3902719 Wed, 25 Aug 2010 20:01:00 +0100 3902719 http://www.medworm.com/index.php?rid=3899061&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2010%2F08%2Fcircadian-signs-found-in-hair-samples.html (Source: Sleep Education) Sleep Education blogs http://www.medworm.com/rss/comments.php?id=3899061 Tue, 24 Aug 2010 15:58:00 +0100 3899061 http://www.medworm.com/index.php?rid=3807306&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2010%2F07%2Fmultiple-factors-hurt-teen-sleep.html (Source: Sleep Education) Sleep Education blogs http://www.medworm.com/rss/comments.php?id=3807306 Sat, 31 Jul 2010 13:00:00 +0100 3807306 http://www.medworm.com/index.php?rid=3690648&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2010%2F06%2Fbody-clock-breakthrough-could-lead-to.html (Source: Sleep Education) Sleep Education blogs http://www.medworm.com/rss/comments.php?id=3690648 Wed, 23 Jun 2010 21:26:00 +0100 3690648 http://www.medworm.com/index.php?rid=3687366&cid=t_135921_151_f&fid=39090&url=http%3A%2F%2Ffeedproxy.google.com%2F%7Er%2Fhelpalcoholicfamily%2FxITS%2F%7E3%2Fcav-rXtbPBY%2F There is hope that exercise can help your alcoholic spouse quit drinking alcohol. A recent circadian rhythm study in hamsters showed that hamsters that “exercised” (more “wheel running” ) drank less alcohol than those restricted from exercise. Does your alcocholic husband or alcoholic wife go to sleep at all hours of the night and get up at different times during the day? Has your alcoholic spouse lost a routine for both their sleeping habits and eating habits? Bottom line: their alcohol abuse is disrupting their circadian rhythm which can also trigger alcoholic relapse in someone who has been abstinent. Dr. David Glass, Professor of Biological Sciences came to this conclusion after studying hamsters and “wheel running”. The hamsters that were restricte... Alcoholic Spouse Advanced Help blogs http://www.medworm.com/rss/comments.php?id=3687366 Tue, 22 Jun 2010 23:13:42 +0100 3687366 http://www.medworm.com/index.php?rid=3671360&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2010%2F06%2F24-hour-endurance-races-pits-drivers.html (Source: Sleep Education) Sleep Education blogs http://www.medworm.com/rss/comments.php?id=3671360 Wed, 16 Jun 2010 15:44:00 +0100 3671360 http://www.medworm.com/index.php?rid=3434923&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2010%2F04%2Fanimals-sleep-clockless-reindeer-and.html (Source: Sleep Education) Sleep Education blogs http://www.medworm.com/rss/comments.php?id=3434923 Sat, 03 Apr 2010 10:47:00 +0100 3434923 http://www.medworm.com/index.php?rid=3370073&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2010%2F03%2Fteens-delayed-sleep-phase-disorder.html (Source: Sleep Education) Sleep Education blogs http://www.medworm.com/rss/comments.php?id=3370073 Mon, 15 Mar 2010 19:51:00 +0100 3370073 http://www.medworm.com/index.php?rid=3366171&cid=t_135921_87_f&fid=36050&url=http%3A%2F%2Fblisstree.com%2Flive%2Flark-or-owl-whats-your-sleep-power-animal%2F From Monday to Friday, most working Americans keep pretty similar hours. We get to work around 9 a.m., which dictates the schedule of our days and nights, including when and how much we sleep. Yet, intuitively, it’s obvious: We don’t all march to the tick of the same clock. The timing of our alertness and our drowsiness, according to the National Sleep Foundation, not only has to do with how much sleep we got last night, but also with our “circadian biological clock”. Some research indicates that our internal clocks could be genetically pre-coded, at least in part. But there are also ways to control that clock and get your sleep in step with your schedule. The BBC’s “Sleep Profiler Quiz”, below, helps to determine whether you’re a lark or an owl, and how to get the most out... Breastfeeding 1-2-3 blogs http://www.medworm.com/rss/comments.php?id=3366171 Mon, 15 Mar 2010 15:00:12 +0100 3366171 http://www.medworm.com/index.php?rid=3287453&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2010%2F02%2Fsleepy-teens-need-to-see-light.html A new study reports that teen sleep patterns may be disrupted by a lack of exposure to morning sunlight.The study took place at a middle school in Chapel Hill, N.C., that has good daylight design. South-facing skylights allow plenty of natural light to enter nearly all spaces of the building.Eleven eighth-grade students wore orange goggles for a five-day school week. The goggles prevented short-wavelength, “blue” light from reaching their eyes.This light plays an important role in helping to set the body’s circadian clock. This timing system helps regulate sleep and wakefulness.In the evenings the researchers measured the children’s “dim light melatonin onset.” This is the time when the body produces more melatonin.This hormone is a “darkness signal” for the body. Sleep ten... Sleep Education blogs http://www.medworm.com/rss/comments.php?id=3287453 Thu, 18 Feb 2010 21:08:00 +0100 3287453 http://www.medworm.com/index.php?rid=3082991&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2009%2F12%2Fbipolar-disorder-in-children-may-be.html A new study found that the circadian clock gene RORB may be involved in bipolar disorder in children.The study analyzed the genetic make-up of 305 children with bipolar disorder. They were compared with 140 controls.Results show a positive association between bipolar disorder and four variants of the RORB gene. The authors suggest that this gene may be an important target in the search for the molecular basis of bipolar disorder.The study also notes that bipolar disorder often involves a decreased need for sleep. This symptom helps discriminate children with bipolar disorder from those with ADHD.The NIMH reports that bipolar disorder is a brain disorder. It is also known as manic-depressive illness.It causes unusual shifts in mood, energy, activity levels and the ability to carry out daily... Sleep Education blogs http://www.medworm.com/rss/comments.php?id=3082991 Sun, 13 Dec 2009 12:05:00 +0100 3082991 http://www.medworm.com/index.php?rid=2770067&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2009%2F09%2Fsleep-weight-gain-watch-when-you-eat.html A new study of mice provides the first causal evidence that links meal timing and increased weight gain, reports Northwestern University. The study suggests that eating when you should be sleeping may lead to weight gain.It might seem easy to eliminate a late-night snack; but meal timing can be a problem for shift workers."One of our research interests is shift workers, who tend to be overweight," said lead author Deanna M. Arble. "Their schedules force them to eat at times that conflict with their natural body rhythms.”The researchers fed mice a high-fat diet over a period of six weeks. Some ate during naturally wakeful hours; others ate when they normally would be asleep.Mice that ate during normal sleeping hours had a 48-percent weight gain; mice that ate the same type and amount of f... Sleep Education blogs http://www.medworm.com/rss/comments.php?id=2770067 Sun, 06 Sep 2009 10:23:00 +0100 2770067 http://www.medworm.com/index.php?rid=2757405&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2009%2F09%2Fchemotherapy-causes-sleep-problems-in.html A study published this week shows that chemotherapy for Breast Cancer, a disease with which approximately 210,000 women are diagnosed each year, impairs sleep-wake cycles in patients. Sleep disturbances can negatively affect treatment and increase risks for other health and mental problems. Results indicate that chemotherapy patients switched from low to high activity about 30 minutes later in the day and decreased their level of activity about 50 minutes earlier at night during their first round of chemotherapy, suggesting that their days were shorter. The study involved 95 women with an average age of 51 years, who were scheduled to receive chemotherapy for stage I-III Breast Cancer. Of the participants, 75 percent were Caucasian, 69 percent were married, 77 percent had at least som... Sleep Education blogs http://www.medworm.com/rss/comments.php?id=2757405 Wed, 02 Sep 2009 13:54:00 +0100 2757405 http://www.medworm.com/index.php?rid=2703924&cid=t_135921_131_f&fid=34989&url=http%3A%2F%2Ffeeds.b5media.com%2F%7Er%2Fb5media%2FGeneticsHealth%2F%7E3%2FD7nRDUVbFfA%2F Every blogger will wish he has this gene! Scientists discovered a rare genetic mutation that allows certain people to sleep on less hours without any adverse effect. In one family, a mother and daughter with this rare mutation needed only six hours of sleep each night while the rest of the family needed the typical 7-8 hours. Gene for Short Sleeper Found. Image: sxc Published in Science, researchers from the University of California- San Francisco isolated the gene as DEC2, involved in the regulation of circadian rhythms, the body’s clock. The scientists then bred mice and fruit flies that carried the mutation and found the mutant mice slept less and needed less time to recover from sleep deprivation. According to health experts, a typical adult needs at least 7-8 hours of sleep each... Genetics and Health blogs http://www.medworm.com/rss/comments.php?id=2703924 Sun, 16 Aug 2009 03:55:00 +0100 2703924 http://www.medworm.com/index.php?rid=2605726&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2009%2F07%2Fgeorge-dawes-greens-free-running.html What would life be like if your sleep and wake times drifted later every day? How hard would it be if you began falling asleep in the morning, then in the afternoon, then in the evening as weeks went by?Just ask George Dawes Green, best-selling author of The Juror. USA Today describes how he sleeps around the clock because of this rare sleep disorder.It is a circadian rhythm sleep disorder that is known by many names. It is called “free-running type” or “nonentrained type.” Sometimes it is called “non-24-hour sleep-wake syndrome” or “hypernychthemeral syndrome.”The disorder is closely related to light and darkness.Normally people have a circadian rhythm that is longer than 24 hours. But during the day and at night regular timing cues reset the body clock to a 24-hour schedu... Sleep Education blogs http://www.medworm.com/rss/comments.php?id=2605726 Wed, 15 Jul 2009 15:23:00 +0100 2605726 http://www.medworm.com/index.php?rid=2463635&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2009%2F06%2Frisk-of-depression-in-evening-types-and.html A new study examines how chronotype may be related to depression. Is the risk of depression greater in “evening types” (“night owls”) or “morning types” (“morning larks”)?The study involved 200 healthy adults between the ages of 18 and 99 years. Results show that people who are “evening types” have a higher risk of severe depressive symptoms.MSNBC reports that evening types went to bed around midnight; morning types went to bed around 11 p.m. and woke up about 40 minutes earlier. Total sleep time was about the same for the two groups.The study was unable to show if sleep schedule causes depression. But it suggests that going to bed and waking up a little earlier could improve your mood.Yet making a change may not be easy; your DNA has a strong influence on when you pref... Sleep Education blogs http://www.medworm.com/rss/comments.php?id=2463635 Sat, 06 Jun 2009 13:35:00 +0100 2463635 http://www.medworm.com/index.php?rid=2456967&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2009%2F06%2Fnba-finals-west-coast-advantage-for.html Game one of the NBA Finals between the Lakers and Magic will tip off a little after 9 p.m. EDT tonight. The Lakers will have the home-court advantage in the seven-game series; a study in the journal Sleep shows that they also may have a West Coast advantage.The study analyzed 8,495 regular-season NBA games over eight seasons. The researchers did not find that jet lag had a major influence on the outcome of games.But then they did a sub-analysis of 101 games in which one team traveled across the country to play. In these games, the visiting team did four points better when they traveled west to east rather than east to west.This may not sound like a big difference. But during the last season studied, there was only a 3.2-point difference between winners and losers in NBA games. Four points ... Sleep Education blogs http://www.medworm.com/rss/comments.php?id=2456967 Thu, 04 Jun 2009 14:36:00 +0100 2456967 http://www.medworm.com/index.php?rid=2405414&cid=t_135921_109_f&fid=34750&url=http%3A%2F%2Fpsychcentral.com%2Fblog%2Farchives%2F2009%2F05%2F13%2Fextended-periods-of-sunlight-might-act-as-suicide-trigger%2F Midweek Mental Greening People often associate becoming depressed during dark winter months with Seasonal Affective Disorder (or, SAD). SAD can actually affect people during any season, including the bright and sunny days during spring and summer months; however, according to a recent Swedish study, regardless of the similar symptoms, SAD doesn’t seem to be the culprit when it comes to the high number of suicides happening in places that experience extended sunlight like Sweden and Greenland. The researchers speculated that light-generated imbalances in serotonin — the brain chemical linked to mood — may lead to increased impulsiveness that in combination with a lack of sleep drives people to kill themselves. “We found that suicides were almost exclusively violent and incre... World of Psychology blogs http://www.medworm.com/rss/comments.php?id=2405414 Wed, 13 May 2009 17:54:56 +0100 2405414 http://www.medworm.com/index.php?rid=2380882&cid=t_135921_109_f&fid=34750&url=http%3A%2F%2Fpsychcentral.com%2Fblog%2Farchives%2F2009%2F04%2F30%2Fwhy-does-pain-get-worse-when-a-storm-is-coming%2F The next time you watch the weather forecast, notice the barometric pressure, measured in inches. Numbers such as 30.04 will be followed by “rising,” “falling,” or “steady.” Typically, when a low pressure front is coming (and they do, all the time) it signals not only a change in the weather, but a drop in the barometric pressure, which is pressure against the Earth’s atmosphere. Remember when Grandma would say, “Rain’s coming, and I can feel it in my joints?” She actually knew this because of what happens to our bodies when the barometric pressure changes. That means that the pressure against your body drops as well, and your joints and areas that are injured can begin to swell. This swelling causes increased inflammation, and we require hormones to deal with this incr... World of Psychology blogs http://www.medworm.com/rss/comments.php?id=2380882 Thu, 30 Apr 2009 16:58:58 +0100 2380882 http://www.medworm.com/index.php?rid=2375329&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2009%2F04%2Fmorning-larks-vs-night-owls-circadian.html People who are larks function better in the morning. Night owls are more alert in the evening. But which “chronotype” enables people to function better over the length of a day?A new study in Science takes a look. It involved 16 early morning risers and 15 night owls. They performed alertness tests in a brain scanner after following their normal sleep schedule.Newsweek and Science report that both groups performed well when they took the test 1.5 hours after waking. But the night owls pulled ahead when both groups were tested after being awake for 10.5 hours. They were more alert and had faster reaction times. Overall their performance improved by about 6 percent.So do night owls have a natural alertness advantage over morning larks? Not necessarily.Health News points out that an advan... Sleep Education blogs http://www.medworm.com/rss/comments.php?id=2375329 Mon, 27 Apr 2009 22:29:00 +0100 2375329 http://www.medworm.com/index.php?rid=2364342&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2009%2F04%2Fhow-children-affect-mothers-sleep-wake.html Some women may have a natural tendency to be a “night owl.” But a new study shows that their sleep-wake rhythm may change after they have children.The study involved 179 women. Some were mothers, some were pregnant, and some had no children.Results show that women with children are more likely to be “morning types.” This means they would have a stronger tendency to go to bed early and wake up early.The study found that mothers woke up about 1.5 hours earlier on weekends. Women with children also reported falling asleep faster than the other women.Which group of women got the most sleep? The women who were pregnant had the longest average sleep duration.Learn more about the many complex factors that can affect a woman’s sleep. (Source: Sleep Education) Sleep Education blogs http://www.medworm.com/rss/comments.php?id=2364342 Thu, 23 Apr 2009 19:55:00 +0100 2364342 http://www.medworm.com/index.php?rid=2357552&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2009%2F04%2Fwhats-your-chronotype-understanding.html A New York Times column examines the factors that contribute to your preferred sleep schedule. This is also called your “chronotype.” It turns out that your DNA has a strong influence on when you like to sleep.Some people have a circadian clock that makes them “evening types.” These “owls” have a natural tendency to stay up late at night and sleep late in the morning. Children tend to become night owls as teens because of a shift in the timing of their circadian clocks.Some night owls have delayed sleep phase disorder. This involves a struggle to conform to work or social demands. It can be difficult for them to function well during the day.Other people are natural “morning types.” These “larks” prefer to go to bed early and wake up early. Adults often become larks as t... Sleep Education blogs http://www.medworm.com/rss/comments.php?id=2357552 Wed, 22 Apr 2009 20:43:00 +0100 2357552 http://www.medworm.com/index.php?rid=2329675&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2009%2F04%2Fresearch-catching-up-to-jet-lag.html Results from a new study in Current Biology may lead to more effective treatments for jet lag and shift work sleep disorder.Both sleep disorders involve a disruption to your body’s circadian timing system. This system regulates the timing of when you sleep and wake.The study shows that this disruption occurs in two separate groups of neurons in the brain. It also involves two different sleep stages.Both groups of neurons are located in the “suprachiasmatic nucleus.” This part of the brain acts as a body clock. It regulates daily functions such as body temperature, hormone levels and sleepiness.The study found that one set of neurons is closely linked with slow wave sleep. This is also called “deep sleep.” These neurons receive light information directly from the eyes. With these ... Sleep Education blogs http://www.medworm.com/rss/comments.php?id=2329675 Fri, 17 Apr 2009 16:07:00 +0100 2329675 http://www.medworm.com/index.php?rid=2329680&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2009%2F04%2Fin-control-of-sleep.html An article in the April issue of The Scientist examines how the body controls the sleep/wake cycle. Much is now known about the brain’s “master clock.” But studies are showing that this circadian clock isn’t in complete control of sleep. Other molecular mechanisms can override its signals when we are forced to stay awake.Thus sleep may have biological functions that are beyond the control of the circadian clock. “It is clear,” writes the author, “that there are many factors affecting sleep.”Read the article to find out more. (Source: Sleep Education) Sleep Education blogs http://www.medworm.com/rss/comments.php?id=2329680 Sun, 12 Apr 2009 11:23:00 +0100 2329680 http://www.medworm.com/index.php?rid=2299075&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2009%2F03%2Fwomen-shift-work-and-breast-cancer.html BBC News reports that some women in Denmark who developed breast cancer after years of working night shifts are receiving compensation from the government.Is there a clear link between shift work and breast cancer?A 2008 review found only limited evidence. Yet there was enough data to convince the International Agency for Research on Cancer.The IARC convened a working group in 2007. It was composed of 24 scientists from 10 countries. The experts reviewed all of the research.They concluded that working night shifts is “probably carcinogenic to humans.” This means that shift work may be a factor “that can increase the risk of human cancer.”The report was the basis for the Danish government’s compensation program. So far almost 40 women have received payment through the program.How ... Sleep Education blogs http://www.medworm.com/rss/comments.php?id=2299075 Tue, 24 Mar 2009 15:38:00 +0100 2299075 http://www.medworm.com/index.php?rid=2224735&cid=t_135921_146_f&fid=38266&url=http%3A%2F%2Fsleepeducation.blogspot.com%2F2009%2F02%2Fbegin-to-spring-forward-before-march-8.html Are you planning ahead for the change to daylight saving time on Sunday, March 8? You should.Sleep experts advise you to go to bed 15 or 20 minutes earlier each night before the time change. This will give your body time to adjust.You may be thinking, “It’s only an hour. What’s the big deal?”Well, the one-hour time change may affect you more than you realize. Consider these research findings:New England Journal of Medicine: Heart attacks are significantly increased for the first three weekdays after the transition to daylight saving time in the spring. The authors suggest that the best explanation for this risk is that the time change causes sleep deprivation.BMC Physiology: The transition in and out of daylight saving time disrupts sleep and enhances restlessness. Springing forwar... Sleep Education blogs http://www.medworm.com/rss/comments.php?id=2224735 Sat, 28 Feb 2009 11:31:00 +0100 2224735 http://www.medworm.com/index.php?rid=1770843&cid=t_135921_122_f&fid=36582&url=http%3A%2F%2Ffeeds.feedburner.com%2F%7Er%2FSharpBrains%2F%7E3%2F384206750%2F With summer drawing to a close and schools starting up for a new season, what better time to take a look at how schools utilize research about the brain in determining the timing of the flow of school. Not only current brain research, but common sense, tells me the following areas need tweaking. - School start times and sleep - Exposure to natural light - Scheduling of classes SCHOOL START TIMES AND SLEEP Left to your own devices, what time would you go to sleep each evening and what time would you wake up? As adults, it is likely that external responsibilities determine your wake time, and the maturity of age guides your sleep time. More often than not, thanks to a sound night’s sleep, you wake mentally refreshed and prepared to face the day. Teenagers are simply out of luck in this r... SharpBrains blogs http://www.medworm.com/rss/comments.php?id=1770843 Fri, 05 Sep 2008 14:05:33 +0100 1770843 http://www.medworm.com/index.php?rid=1312352&cid=t_135921_117_f&fid=34612&url=http%3A%2F%2Fwww.thedoctorweighsin.com%2Fjournal%2F2008%2F3%2F18%2Fviagra-for-what.html By Dov Michaeli MD, Ph.D Viagra can perk up… no, no what you think. Rejoice all ye travelers: Viagra will perk you up and shorten your jet lag if you go from West to East. How does it work? The biological clock This concept needs no introduction: most animals gear their activities to the light-dark (LD) cycles. In mammals this “biological clock” resides in a specific area of the brain, called the suprachiasmatic nuclei (SCN). The principal signal that adjusts the biological clock with the environment is the LD cycle. But how does an area deep inside the brain sense light? Of course, you would say. Don’t we have an optic nerve that transmits images from the retina to the brain?But, if that were the mechanism, blind people would not have been entrained (synchronized)... The Doctor Weighs In blogs http://www.medworm.com/rss/comments.php?id=1312352 Tue, 18 Mar 2008 20:46:34 +0100 1312352 http://www.medworm.com/index.php?rid=1087574&cid=t_135921_109_f&fid=34750&url=http%3A%2F%2Fpsychcentral.com%2Fblog%2Farchives%2F2007%2F12%2F11%2Fregular-sleep-helps-improve-bipolar%2F This study showed that this other stuff, the stuff that is so often ignored when being treated by a primary care or family physician, can also be very important to obtaining and then maintaining treatment gains. The researchers found that simply by helping people maintain a consistent sleep schedule and wake time helped balance the circadian system, which in turn helped people avoid nighttime sleeplessness or daytime exhaustion. Such exhaustion or sleeplessness can increase the risk of new episodes of mania or depression. I find this stuff fascinating because of its impact on client outcomes, and how easy it is to give people these skills through a few sessions of therapy. Read the article: Regular Routines, Sleep Helps Improve Bipolar (Source: World of Psychology) World of Psychology blogs http://www.medworm.com/rss/comments.php?id=1087574 Tue, 11 Dec 2007 16:53:42 +0100 1087574 http://www.medworm.com/index.php?rid=768909&cid=t_135921_122_f&fid=34736&url=http%3A%2F%2Fchanneln.blogspot.com%2F2007%2F07%2Fhypothalamus-and-chronobiology.html title Hypothalamic Regulation Of Sleep And Circadian Rhythmsdescription Neuroanatomy and chronobiology lecture. "The focus of Dr. Saper's laboratory is on the integrated functions maintained by the hypothalamus. These include regulation of wake-sleep cycles, body temperature, and feeding." NLM Classification: WL 312 NLM ID: 101268607 CIT File ID: 12302 CIT Live ID: 3603 Close-captioned.producer NIH Neuroscience Seminar Series; filmed at Bethesda, Md. National Institutes of Healthfeaturing Clifford Saperformat Real Videodate 15/11/04length 01:10:53link http://videocast.nih.gov/Summary.asp?File=12302direct video link http://videocast.nih.gov/launch.asp?12302The description includes, "Rights: This is a work of the United States Government. No copyright exists on this material. It may be ... Channel N blogs http://www.medworm.com/rss/comments.php?id=768909 Tue, 31 Jul 2007 06:07:00 +0100 768909 http://www.medworm.com/index.php?rid=683123&cid=t_135921_146_f&fid=34960&url=http%3A%2F%2Fsleepdoctor.blogspot.com%2F2007%2F06%2Fcircadian-rhythms.html USAToday has a nice article today about circadian rhythms, with the final part of the article focusing on the possible role of circadian rhythm disturbance in bipolar disorder:In people, circadian rhythm disorders can trigger serious problems, notably depression. Seasonally affective disorder is a winter depression tied to a lack of the sunlight cues that trigger the SCN into proper rhythm.Also, there are indications that bipolar disorder also involves circadian problems, McClung says. This disorder causes unusual shifts in mood and energy, with episodes varying between extremes and afflicting some 5.7 million people nationwide, according to the National Institute of Mental Health. "People might sleep all the time or not sleep at all," says McClung. Body temperatures and hormone levels sim... sleepdoctor blogs http://www.medworm.com/rss/comments.php?id=683123 Wed, 20 Jun 2007 01:45:00 +0100 683123 http://www.medworm.com/index.php?rid=676735&cid=t_135921_140_f&fid=35439&url=http%3A%2F%2Fbipolarsoupkitchen-stephany.blogspot.com%2F2007%2F06%2Fare-you-awake-blue-light-special.html Blue light special-Blue light resets body rhythms for sounder sleep, higher alertness,Harvard Gazette, 2003When light has you singing the blues:Blue light outshone white in a Harvard University experiment to find better ways to reset our body clocks."After 6.5 hours of exposure, blue light readjusted their body clock by 3 hours, green light by about 1.5 hours. If you normally feel your eyelids getting heavy at 11 p.m., a 6.5-hour dose of blue light might keep you alert until 2 a.m. If a change in shift leaves you sleepless at 4 a.m., blue light might help you sleep three hours longer. (Which way the shift goes depends on when the light exposure takes place.)""Our study opens the door to both understanding how humans and other organisms adjust to the planet's rhythms, and how we can practic... soulful sepulcher blogs http://www.medworm.com/rss/comments.php?id=676735 Mon, 11 Jun 2007 04:04:00 +0100 676735