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Sleep quantity, quality linked to heart health in adolescents

Sleep quantity, quality linked to heart health in adolescents

Sentinel Digital DeskBy : Sentinel Digital Desk

  |  17 Jun 2018 11:30 PM GMT

Washington, June 17: Both quantity and quality of sleep in adolescents had significant effects on aspects of cardiovascular health such as blood pressure, cholesterol levels and abdominal fat deposition, according to a study published in the latest issue of Pediatrics. Researchers focused on the amount of time sleeping and the percentage of sleep that is undisturbed with 829 now-adolescent study participants. They had both their night-time sleep and daily physical activity measured over 7 to 10 days by actigraphy, which records physical motion by a device worn on the wrist, Xinhua news agency reported. “While many studies have associated shorter sleep duration with increased obesity levels in children, few have examined effects on other risk factors, such as blood pressure, blood lipids and glucose metabolism, or examined associations of sleep quality with these outcomes,” said Elsie Taveras, chief of the Division of General Academic Pediatrics in Massachusetts General Hospital for Children and senior author of the Pediatrics paper.

Sleep duration of less than 7 hours was found in 31 percent of participants, and more than 58 percent had sleep efficiency less than the 85 percent that is considered sufficient for adults. According to the study, both shorter sleep duration and lower sleep efficiency were associated with increased levels of overall and abdominal fat deposition, associations that persisted after adjustments for physical activity, television viewing and consumption of fast foods or sweetened beverages. Longer sleep duration and higher efficiency were associated with reductions in cardiometabolic risk which was based on factors such as smaller waist circumference, lower systolic blood pressure and higher high density lipoprotein cholesterol levels. Most of those associations also persisted after adjusting for the factors noted above. (IANS)

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