What is the role of sleep in obesity?

Updated: Jun 09, 2021
  • Author: Osama Hamdy, MD, PhD; Chief Editor: Romesh Khardori, MD, PhD, FACP  more...
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Answer

A sufficient amount of sleep favorably impacts the maintenance of fat-free mass during times of decreased energy intake. In contrast, insufficient sleep undermines the body's ability to limit expansion of fat mass. A healthy sleep pattern is therefore important to harness weight loss benefits from other interventions. [148] Seven to 8 hours of sleep are optimal. Shorter (< 6 h) or longer (>9 h) sleep duration is associated with increased total body weight. Treatment of obstructive sleep apnea, if present, also helps in weight reduction.


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