Results of a study published in the June 15, 2009 issue of the Journal of Clinical Sleep Medicine show that complaints of fatigue and tiredness in patients with obstructive sleep apnea (OSA) improved significantly with good adherence to continuous positive airway pressure (CPAP) therapy, suggesting that — like the symptom of excessive daytime sleepiness — these complaints are important symptoms of obstructive sleep apnea.
The results demonstrate good adherence to CPAP therapy for an average of five or more hours per night resolved baseline complaints of fatigue in 45 of 80 participants (56 percent), tiredness in 56 of 96 participants (58 percent) and sleepiness in 48 of 72 participants (67 percent); improvement of each symptom was significantly better among CPAP-adherent participants than among inadequately treated subjects. A baseline complaint of lack of energy also was resolved in 47 of 100 participants with good CPAP adherence, but this improvement failed to reach statistical significance when compared with inadequately treated participants.
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A research abstract presented at Sleep 2009 demonstrates that sleep selectively preserves memories that are emotionally salient and relevant to future goals when sleep follows soon after learning. Effects persist for as long as four months after the memory is created.
Results show the sleeping brain seems to calculate what’s most important about an experience and then selects only what is adaptive for consolidation and long-term storage. Across delays of 24 hours, or even three-to-four months, sleeping soon after learning preserved the trade-off as compared to waiting an entire day before going to sleep.
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The National Sleep Foundation seventy million people in the United States suffer from sleep disorders. About 40 million of these suffer from acute sleep disorders, including circadian rhythm sleep disturbance.
Consider Dan, a 23-year old male complaining of insomnia. He can’t fall asleep at night and habitually arrives at work later than his employer’s 8 a.m. starting time. Does Dan have depression, situational insomnia, obstructive sleep apnea or a circadian rhythm disturbance? Or does he just want to start work late?
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In a study that examined the relationship between race, menopausal status and symptoms of obstructive sleep apnea (OSA), middle-aged black women were found to be more likely to experience OSA symptoms than their white counterparts.
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Prescription sleep aids may do little to improve the use of continuous positive airway pressure devices (CPAP) among patients with obstructive sleep apnea (OSA).
A new study published in the November issue of CHEST, the peer-reviewed journal of the American College of Chest Physicians (ACCP), finds that patients with OSA who were given prescription sleep aids were no more likely to use their CPAP machines than patients with obstructive sleep apnea taking a placebo.
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