| http://www.w3.org/ns/prov#value | - In the research facility, an overnight polysomnography was also made; according to Wikipedia, a polysomnography is a multi-parametric test used in the study of sleep, and the test result is termed a polysomnogram.The study team reported that healthy teenagers who had less than 6.5 hours of sleep a night were 2.8 times more likely to have elevated blood pressure levels, when compared to those who
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