Sunday, 1 August 2010

K2 Pedia! | 'Seven hours of sleep is best' | Hours, Sleep, Seven, Study, Found, Heart, Day, Than, Best, Data, Analysis, Gathered, National, Adults, Findings, Based, Journal, Disease, Reported, Have http://www.k2pedia.com/health/102-health-news/64943--seven-hours-of-sleep-is-best-
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