Thursday, August 20, 2009

Causes and Symptoms of Restless Leg Syndrome

Causes and Symptoms of Restless Leg Syndrome
We started our discussion about restless legs syndrome (RLS) in my recent blog, so let’s continue where we left off.   Mild symptoms of RLS occur in 5-15% of the general population, which makes it the second or third most common sleep disorder.  Of these cases, only about 2-3% are considered clinically severe enough to require treatment.  It appears to occur more commonly in females and can even affect children.  Due...

The Function of Sleep Not Quite Explained
We finished the last blog in mid-thought.  We were talking about REM sleep and the idea of brain plasticity- the rewiring of our brains that take place when we learn new information.   A recent study in rats showed that 4 days of REM sleep deprivation decreased the amount of new cells in the part of the brain that is associated with long-term memory, in other words they did not make those new circuits.   Another study with...

Memory, Brain Function, and REM Sleep: Are They Related?
In my last blog we discussed at length the different stages of sleep, namely non-REM and REM, the biological need for sleep to stay alive, and started discussing what some researchers believe may be the function of some portions of non-REM sleep.  We reviewed how there is some evidence linking declarative memory (memory of facts and figures) to slow wave sleep and procedural memory (the ability to perform tasks like riding a bike or playing...

Sleep Deprivation 101: What You Should Know
In my previous blogs I have written about the importance of good sleep, but I don’t think we ever really explained the significance of sleep deprivation and the effects on society and the individual. I thought that it would be a good idea to go over some significant facts and figures to convince you of the importance of getting a good restful sleep and of the need to address sleep problems with your doctor.What is sleep deprivation?It is...

The Holy Grail of Biological Questions: Why Do We Sleep?
In this blog, I am going to deal with a question that has stumped some of the most talented researchers in the world.  That should hopefully get your attention- this vexing question seems simple, but represents the “holy grail” of biology.  The question: why do we sleep?  Consider this- we spend approximately one-third of lives doing it and scientists are still not quit sure why.  (Much of this and future blogs on...

All Sleep is Not Created Equal
In my last blog we were reviewing the fundamental question of why we sleep.  We left off trying to sort out the level of activity of the brain and body during different stages of sleep (i.e. Non-REM and REM).    During non-REM the body and brain are at their most relaxed state.  Ironically, most people think of REM as deep sleep, but actually during REM the level of brain activity resembles the awake state.  Our most...

Diet and Sleep Part Two
You are what you eat I can hear you saying, "Okay... now I have to watch what I eat and when I eat it... but now you are going to limit my fluids?"   No! However, there are certain factors that should be kept in mind when drinking any type of fluids. One troublesome item is caffeine. Caffeine interferes with sleep with most people. Caffeine can also become an addiction... so watching our intake should be...

Relieving Those Restless Legs
Let’s continue talking about restless legs syndrome (RLS).   We reviewed some of the symptoms, causes, and adverse effects of restless legs syndrome in the past two blogs, now let’s talk about how RLS is diagnosed.  Due to the unusual sensations that patients with RLS complain of, it is sometimes difficult for a healthcare provider to determine if these complaints are actually related to RLS.  Contrary to popular...