Monday, August 10, 2009

A Link Between The Circadian Rhythm And Salt Balance

A Link Between The Circadian Rhythm And Salt Balance
New research, conducted by Charles Wingo and his colleagues, at the University of Florida, Gainsville, suggests a link between the circadian rhythm and control of sodium (salt) levels in mice. The hormone aldosterone regulates levels of sodium in the blood and thereby helps control blood pressure.

In Postpartum Women, Poor Sleep Is Independently Associated With Depression
A study in the July 1 issue of the journal SLEEP suggests that postpartum depression may aggravate an already impaired sleep quality, as experiencing difficulties with sleep is a symptom of depression.

Children With Sickle Cell Disease Need A Good Night's Sleep
Children with sickle cell disease tend to have interrupted sleep many times during the night leaving them tired and irritable during the day. It may be because the oxygen levels in their blood are reduced or they tend to have enlarged adenoids and tonsils, which can interfere with breathing at night.

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...

S.A.D. and Circadian Rhythms
“If we had no winter, the spring would not be so pleasant: if we did not sometimes taste of adversity, prosperity would not be so welcome.”   - Anne Bradstreet, British poet   It’s that time of the year again.  Especially for those of us not fortunate enough to live in warmer climes- the winter is coming.  As we all know, along with the season comes shorter days and longer nights.  Some of us may...

Why Little Kids Need Big Sleep