The US Centers for Disease Control and Prevention (CDC) reports that 30% of the nation's workers are sleeping under 6 hours a day, which is less than the 7 to 9 hours that the National Sleep Foundation recommends for healthy adults. To assess the prevalence of insufficient sleep among US workers, the CDC analyzed data from the 2010 National Health Interview Survey (NHIS). They published the results in the 27 April issue of their Morbidity and Mortality Weekly Report (MMWR)...
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