A study in the October 1, 2009 issue of the journal Sleep shows elderly women sleep better than elderly men even though women consistently report their sleep is shorter and poorer. Women reported less and poorer sleep than men on all of the subjective measures, including a 13.2 minute shorter total sleep time (TST), 10.1 minute longer sleep onset latency (SOL), and a 4.2 percent lower sleep efficiency.
Carbon monoxide (CO) levels in a patient’s blood may determine the severity of a patient’s obstructive sleep apnea (OSA), according to a study published in the November 2008 issue of Chest.
Masayoshi Kobayashi, M.D., of the Yokohama City University Graduate School of Medicine in Yokohama, Japan, and colleagues determined CO levels in 35 patients with OSA and 17 healthy controls matched for age, both before and after polysomnography.
Children and teens who get less sleep, especially those who spend less time in rapid eye movement (REM) sleep, may be more likely to be overweight, according to a report in the Archives of General Psychiatry.
The obesity rate has more than tripled among children six-to-11 years in the past 30 years, and approximately 17 percent of U.S. adolescents are now overweight or obese, according to background information in the article.
Children with a migraine headache are more likely to have sleep disorders, such as obstructive sleep apnea and lack of sleep, than children without a migraine, according to a research abstract on the effects of headaches on children’s sleep patterns at Sleep 2008.
For this study, 90 children with headache and sleep problems underwent a polysomnogram, a sleep test that monitors the brain, eye movements, muscle activity, heart rhythm, and breathing. Of the participants, 60 had a migraine, 11 had a chronic daily headache, six had a tension headache and 13 had a non-specific headache.
Suppression of slow-wave sleep in healthy young adults significantly decreases their ability to regulate blood-sugar levels and increases the risk of type 2 diabetes, report researchers from the University of Chicago Medical Center.
Deep sleep, also called slow-wave sleep, is thought to be the most restorative sleep stage, but its significance for physical well-being has not been demonstrated. This study found that after only three nights of selective slow-wave sleep suppression, young healthy subjects became less sensitive to insulin.
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As of May 2, 2009 at 9:47 p.m. (-0500) (ET), the U.S. population
was 306,340,710. Sleep researchers estimate approximately seven percent
of the population suffers from obstructive sleep apnea. Using that
estimate, there are potentially 21,443,850 apneics in the U.S.
~~ Apnea around the world ~~
As of May 2, 2009 at 9:47 p.m. (-0500) (ET), the world population
was 6,777,286,604. Sleep researchers estimate approximately seven percent
of the population suffers from obstructive sleep apnea. Using that
estimate, there are potentially 474,410,062 apneics in the world.
