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brain-damage

Studies show that obstructive sleep apnea (OSA) affects much more than just your sleep. It can even damage your brain.

A recent brain imaging study from France involved 16 adults. Each of them had just been diagnosed with sleep apnea.

In numerous brain regions the study found a loss of “gray matter.” This is brain tissue that contains fibers and nerve cell  bodies. There also was a decrease in brain metabolism.

The authors suggest that these changes may explain some of the impairments that often occur in people with sleep apnea. Examples include attention lapses and memory loss. The study was published in March 2009 issue of the Journal of Sleep Research.

The results are similar to those found by a research team from UCLA. Their study was published in Neuroscience Letters in June 2008. They reported that people with sleep apnea have tissue loss in the “mammillary bodies.” These are brain regions that help store memory.

In July 2008 the UCLA team published another brain imaging study in the journal Sleep.It involved 41 people with moderate to severe sleep apnea. It also included 69 control subjects matched by age.

Results show that people with sleep apnea have extensive alterations in “white matter.” This is nerve tissue in the brain. It contains fibers that are insulated with myelin -a white, fatty sheath. The structural changes appear in brain regions that help control mood and memory. These regions also play a role in adjusting your blood pressure. Damage also was found in fiber pathways that connect these brain regions.

What causes the brain damage? The authors suggest that oxygen, blood flow and blood pressure may be involved. Sleep apnea involves breathing pauses that can occur hundreds of times a night of sleep. These pauses can produce drastic changes in oxygen levels.

These breathing pauses also reduce blood flow in the brain. People with sleep apnea also are at risk for high blood pressure. Both of these conditions create a potential for brain tissue damage.

Dr. Ronald Harper of UCLA said that the studies show how important it is for sleep apnea to be treated. CPAP is the most common treatment for sleep apnea. The findings make it all the more imperative that OSA be treated as soon as possible to prevent further injury. The long-term effects of OSA are terribly damaging to memory and thinking processes.

Can treatment reverse the brain damage caused by sleep apnea? The authors are uncertain if the changes are permanent.

But studies show that CPAP does help your heart, it may even save your life.

mind-racing

Insomnia can make you feel like your mind is racing out of control. A revealing new study explains why your brain may be unable to put the brakes on your thoughts. It links the problem to low levels of a brain chemical.

A new study shows that GABA levels are reduced by 30 percent in adults with chronic primary insomnia. The study was published in the Nov. 1 issue of the journal Sleep.

GABA is reduced in the brain of individuals with insomnia, suggesting over activity is present. It was explained that low GABA levels create an imbalance of brain activity. This may lead to an inability to shut down waking signals in the brain.

If your GABA levels are low, then your mind can’t slow down. It may race forward at full speed even when it is time to sleep. An over active mind is a key feature of psychophsicological insomnia. At bedtime you are unable to stop thinking and worrying. Your body may be ready for sleep, but your mind remains alert. This state of “hyperarousal” can make it hard for you to fall asleep.

Most with insomnia have “secondary” insomnia. It occurs along with another medical problem, mental illness or sleep disorder. It also may result from the use of a medication or substance. In contrast primary insomnia is unrelated to another health problem. Estimates that about 25 percent of people with insomnia have primary insomnia. The study only links low GABA levels to long lasting, primary insomnia.

All participants in the study had been suffering from primary insomnia for mor than six months. The average duration of their symptoms was about 10 years. The GABA connection affirms that primary insomnia is a legitimate disorder.

Recognition that insomnia has manifestations in the brain may increase the legitimacy of those who have insomnia and report substantial daytime  consequences. It was also explained that insomnia can affect your energy, concentration and mood. It also increases your risk of depression.

One solution for the problem of primary insomnia is the use of hypnotic medication. The short-term use of a sleeping pill can help break the cycle of sleepless nights. The study notes that many of the most effective sleeping pills increase activity at the GABA neurons.

Another treatment option is cognitive behavioral therapy. CBT helps you learn how to correct attitudes and habits that hinder your sleep. Many of these bad habits develop as people try to cope with chronic insomnia.

saving money

 Current economic conditions in the U.S. are forcing many consumers to cut back on health care expenses. Yet sleep experts advise that the cost of a sleep study is a sound investment for millions of people who suffer from a sleep disorder.

The Centers for Disease Control and Prevention reports that about 15 million adults in the U.S. did not receive needed medical care in 2005 because they could not afford it. In July, the National Association of Insurance Commissioners conduted a national survey. Results show that 22 percent of people have reduced the number of times they visit the doctor because to current economic conditions.

 In such a challenging economy, should your sleep needs be a priority?

Sleep is one of the cornerstones of good health. It affects everything from your weight and blood pressure to your energy and mood. If you have been struggling with an ongoing sleep problem, then a sleep study may be just what you need. It could be the key that unlocks the door to a dramatic improvement in your health and a better quality of life for you.

 Losing sleep over the economy, but losing sleep over an undiagnosed problem is no fun.

People are notorious for underestimating how sleepy they are. People assume that thier disrupted sleep and level of sleepiness when awake is normal for their age. Symptoms of some sleep disorders also can go unnoticed. For example loud snoring and gasping for breath durning sleep are two warning signs for sleep apnea. But you may be unaware of these sym if you live or sleep alone. As a result, millions of people go through each day wondering why they can’t stay awake. Others go to bed each night wondering why they can’t sleep. The answers to these questions often can be found by a sleep study…

    Here are some benefits to think about:
Research shows that there are numerous benefits to detecing a sleep disorder with a sleep study.  The study pinpoints the nature and cause of your sleep problem. This provides the foundation for an effective treatment plan. Treating a sleep disorder promotes heath, productivity and well-being. In the long run it also can save you money!

  • Improved Health
    Research has linked sleep disorders to many other health problems. These include heart disease, high blood pressure, stroke, diabetes and obesity. A study in the journal Sleep even shows that people with severe, untreated sleep apnea have five times the risk of dying from a heart problem. Effective treatment of a sleep disorder can reduce the risk and severity of other related health challenges.
  • Reduced Spending
    Studies have linked undetected and untreated sleep disorders to an increase in health-care utilization and spending. You are likely to make more visits to the doctor’s office each year. You are also likely to spend more money on your health care. Expenses may include testing, medications and hospitalization. Research shows that effective treatment of a sleep disorder can reduce your health-care spending. Compared to the high cost of remaining untreated, treating most sleep disorders is relative inexpensive.
  • Greater Productivity
    Studies have linked sleep disorders to lower productivity and more absences at work. A severe sleep disorder may even prevent you from being able to stay employed. Effective treatments of a sleep disorder can enable you to improve your job performance.
  • Better Safety
    Research has linked sleep disorders to an increased risk of work-related injuries and motor-vehicle accidents. Effective treatments promotes your safety at work on the roads.
  • Improved Quality of Life
    Sleep disorders can take a severe tool on your personal well-being. Taking care of yourself leads to improvements in your mood, attitude, energy, memory and overall outlook on life. Sleep disturbances can put strain on your relationships.

Mysleepapnea.com can help you with obtaining a Home Sleep Test.

The wise words of Wilse Webb, a prominent sleep researcher recently said.

  So, question of pose: How long can humans stay awake?

The experiemental answer to this question is 264 hours (about 11 days).  In 1965, Randy Garder, a 17 year-old high school student, set this apparent world-record for a science fair. Several other normal research subjects have remained awake for eight to 10 days in carefully monitored experiments. None of these individuals experienced serious medical, neurological, physoiological or psychiatric problems.

  On the other hand, all of them showed progressive and significant deficits in concentration, motivation, perception and other higher mental processes as the duration of sleep deprivation increased. Nevertheless, all experimental subjects recovered to relative normality within one or two nights of recovery sleep.  Other anecdotal reports describe soldiers staying awake for four days in battle, or un-medicated patients with mania going without sleep for three to four days.

  The more difficult answer to this question revolves around the definition of “awake.” As mentioned above, prolonged sleep deprivation in normal subjects induces altered stated of consciousness ( often described as “microsleep”), numerous brief episodes of overwhelming sleep, and loss of cognitive and motor functions. We all know the dangerous, drowsy driver, and have heard about drowsy flyers crashing planes because they fell asleep while flying. RandyGardner was “awake” but basically cognitively dysfunctional at the end of his ordeal.

 In certain rare human medical disorders, the question of how long people can remain awake raises other surprising answers, and more questions. Morvan’s fibrillary chorea or Morvan’s Syndrome is characterized by muscle twitchings, pain, excessive sweating, weight loss, periodic hallucinations, and severe loss of sleep ( agrypnia ). Michel Jouvet and his colleagues in Lyon, France, studies a 27 year-old man with this disorder and found he had virtually no sleep over a period of several months. During that time he did not feel sleepy or tried and did not show any disorders of mood, memory, or anxiety. Nevertheless, nearly everynight between 9:00 and 11:00 p.m., he experienced a 20 to 60-minute period of auditory, visual, olfactory and somesthetic (sense of touch ) hallucinations, as well as pain and vasoconstriction in his fingers and toes. In recent investigations, Morvan’s Syndrome has been attributed to serum antibodies directed again by specific potassium (K+) channels in cell and nerve membranes.

  So, to return to the orginal question, “How long can humans stay awake?” the ultimate remains unclear. Despite studies, there are no reports that sleep deprivation per se has killed any humab ( excluding accidents and so forth ). Indeed, the U.S. Departmend of Defense has offered research funding for the goal of sustaining a fully awake, fully functional “24/7” soldier, sailor, or airman. Future warriors will face intese, around the clock fighting for weeks at a time. Will bioengineering eventually produce genetically cloned soldiers and citizens with a variant of Morvan’s Syndrome who need no sleep but remain effective and happy? I hope not. A good nights sleep is one of life’s blessings.

As Coleridge wrote years ago, “Oh sleep! It is a  gentle thing, beloved from pole to pole.”

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HomeSleepQuiz

  Are you satisfied with your life? If not, how’s your sleep? A new study shows there may be a connection.

Life satisfaction and sleep quality are known to be important factors in your overall health and well-being. But how are they related?

Does poor sleep cause you to be less satisfied with your life? Or does low satisfaction with your life lead to sleep problems?

The researchers sought to find the an answer. Their study involved 18,631 same-sex twins in Finland.

They measured life satisfaction, sleep quality and other factors. Then they did a follow up six years later and recorded the same measures.

  What did they find? People who became dissatisfied with their life during the six years between study points were more likely to have had sleep problems. Fifty-nine pecent of these newly dissatified people had reported at the beginning of the styd that they sleep poorly.

The results also show that poor sleep predicted a consistent pattern of life dissatifaction. But the reverse wasn’t true; life dissatisfaction did not consistently predict poor sleep.

Studying twins also provided a genetic look at the connection. The study shows that both sleep quality and life satisfaction has a strong genetic component; there was substantial heritability for both traits.

Both genetic influence is different; the genetic component shared by sleep quality and lif satisfaction was relatively weak.

The study supports the idea that poor sleep may have direct effects on the brain, emotions and mood.

  So how is the quality of your sleep? You can get a better idea by completing this brief sleep evaluation.

time

 

Updated information about the FMCSA proposed medical ruling for CDL requirements.

According to Trasport Topics, the Federal Motor Carrier Safety Administration last week issued a final rule requiring all interstate truck drivers to prove they have passed medical examinations and proposed a separate rule setting up a national registry of qualified examiners.

The rule would require proof of an exam to obtain and keep commercial driver license.

This  new rule, long sought by safety advocates, also will require states to merge commerical driver license records and truk drivers’ medical examination certificates into a singe electronic record that law enforcement officials could check at any time.

Current federal regulations require that commercial drivers pass medical exams every two years, but in most states, drivers are required only to prove evidence of their medical certifications to their employers or when asked by roadside inspectors or law enforcement officers.

Under the new rule, drivers will be required to keep their state licensing agencies informed each time they pass their mandated medical exams, which is every two years for drivers who don’t have special medical conditions. Some drivers with medical problems are required to pass medical exams as often as every three months!

The new driver medical requirements are intended to help prevent medically unqualified drivers from operating on the nation’s highways by providing state licensing agencies with a means of identifying interstate CDL holders who are unable to obtain a medical certificate.

FMCSA also said this rule would deter drivers from submitting falsified medical certificates because enforcement personnel would have electronic access to information about the medical certificate and the identity of the medical examiner.

After the new rule is implemented, drivers will no longer be required to carry a medical certification care in thier wallets.

*Did you know… During 2007, FMCSA and its state partners conducted more than 3.4 million roadside inspections, citing drivers with more than 145,000 violations for failing to have medical examination  certificated in their possession and issued 6,105 violations for physically unqualified drivers.

It is said that the propsed medical examiners rule would help prevent “doctor shopping” and fraud.


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