New evidence from a pooled analysis of two randomized controlled trials demonstrates that sleep restriction has measurable metabolic consequences in adults with elevated cardiometabolic risk. When sleep was reduced by just 1.5 hours per night, participants experienced significant increases in body weight and waist circumference, alongside increased sedentary behavior.
The findings underscore an often-overlooked dimension of metabolic health. Sleep loss appears to disrupt the behavioral regulation of energy expenditure, leading to reduced physical activity and metabolic dysregulation. These results suggest that healthcare providers should integrate sleep duration as a standard component of weight management interventions, alongside traditional approaches focused on diet and exercise.
For adults with cardiometabolic risk factors—including hypertension, dyslipidemia, or impaired glucose tolerance—prioritizing adequate sleep may offer an accessible, evidence-based strategy to support weight management goals.
Read the full article on GMJ Newsroom.
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