Monday, September 5, 2011

BRIEF COMMENT

Sleep and Hypertension
Here is an interesting article (abstract) from Maple Fung, et al for the "Osteoporotic Fractures in Men Research Group" about the effect of sleep on the risk of hypertension. The study reports that decreased duration of slow wave sleep increases the risk of developing hypertension. Journalist, Anahad O'Connor has a nice piece on this in the NYTimes.  
The sample was 784 community-dwelling, ambulatory men ≥65 years of age (mean age: 75.1±4.9 years) from the Outcomes of Sleep Disorders in Older Men Study.
Of 784 older men included in this report, 243 met criteria for incident hypertension after a mean follow-up of 3.4 years. 
The key findings:
  • "In unadjusted analyses, incident hypertension was associated with increased hypoxemia, increased sleep stages N1 and N2, and decreased stage N3 (slow wave sleep [SWS]). After adjustment for age, nonwhite race, study site, and body mass index, the only sleep index to remain significantly associated with incident hypertension was SWS percentage (odds ratio for lowest to highest quartile of SWS: 1.83 [95% CI: 1.18 to 2.85])."
So, friends, sleep tight and sleep long!