Research
Mixed
Short sleep duration (less than 5 hours per night) is significantly associated with an increased risk of obesity, with an odds ratio of 1.89 in children and 1.55 in adults.
Aim for 7-8 hours of sleep per night. Sleeping less than 5 hours significantly increases your risk of obesity. Prioritize sleep as a key component of your metabolic health strategy.
StrongSupportsVERY_HIGH confidence
A comprehensive meta-analysis encompassing 36 studies and a combined total of 634,511 individuals... reported a significant association between short sleep duration—defined as less than 5 hours per night—and an increased risk of obesity. The odds ratio (OR) for obesity was 1.89 in children and 1.55 in adults.
Why this rating
Based on a meta-analysis of 36 studies with over 634,000 participants.
Source
The transition from preclinical to clinical obesity: the importance of a borderline stage
Jesus Emanuel Maldonado-Arvizu et al. · Clinical Science · 2026
DOI 10.1042/cs20256728
narrative_reviewCited 2×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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- The 'borderline stage' of obesity (BMI 28-31.9 kg/m²) is a critical transitional phase characterized by elevated triglycerides, insulin resistance, and low-grade chronic inflammation, representing a vital window for early intervention to prevent clinical obesity.Good
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