X-Message-Number: 29180
Date: Fri, 23 Feb 2007 20:33:10 -0800 (PST)
From: 
Subject: lazy method for life extension

Arch Intern Med. 2007 Feb 12;167(3):296-301.
Siesta in healthy adults and coronary mortality in the general
population.Naska A, Oikonomou E, Trichopoulou A, Psaltopoulou T,
Trichopoulos D. Department of Hygiene and Epidemiology, University of
Athens Medical School, Athens, Greece.
  BACKGROUND: Midday napping (siesta) is common in populations with low
coronary mortality, but epidemiological studies have generated
conflicting results. We have undertaken an analysis based on a sizable
cohort with a high frequency of napping and information on potentially
confounding variables including reported comorbidity, physical activity,
and diet. METHODS: Among participants in a general population cohort (the
Greek European Prospective Investigation into Cancer and Nutrition [EPIC]
cohort), 23 681 individuals who at enrollment had no history of coronary
heart disease, stroke, or cancer and had complete information on frequency
and duration of midday napping, as well as on potentially confounding
variables, were followed up for a mean of 6.32 years. Data were modeled
through Cox regression, using time to coronary death and treating deaths
from other causes as censoring events as outcomes. RESULTS: Among men and
women, when controlling for potential confounders and using those not
taking siesta as a referent category, those taking a siesta of any
frequency or duration had a coronary mortality ratio (MR) of 0.66 (95%
confidence interval [CI], 0.45-0.97). Specifically, those occasionally
napping had a 12% lower coronary mortality (MR, 0.88; 95% CI, 0.48-1.60),
whereas those systematically napping had a 37% lower coronary mortality
(MR, 0.63; 95% CI, 0.42-0.93). Among men, the inverse association was
stronger when the analysis was restricted to those who were currently
working at enrollment, whereas among women, a similar analysis was not
possible because of the small number of deaths. CONCLUSION: After
controlling for potential confounders, siesta in apparently healthy
individuals is inversely associated with coronary mortality, and the
association was particularly evident among working men.
PMID: 17296887

Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=29180