Energy balance
Short sleep duration (defined as <7 hours per night) is consistently associated with an increased risk of developing obesity and type 2 diabetes mellitus (T2DM) in adults and children, with a dose-response relationship where shorter sleep correlates with higher risk.
Aim for 7-8 hours of sleep per night. Consistently getting less than 7 hours is a significant risk factor for gaining weight and developing type 2 diabetes. This is not just about feeling tired; it affects your body's energy balance and insulin sensitivity. Protecting your sleep duration is as critical for metabolic health as your diet and exercise habits.
Based to cohort-included meta-analytic data, short sleep duration has been consistently associated with increased risk of obesity (whether defined based on BMI or WC)... The shorter the sleep duration, the higher the risk of obesity; the pooled relative risk (RR) for obesity was 1.09 (95% CI, 1.05–1.14) per 1-h decrement of sleep duration compared to 7–8 h (Itani et al. 2017, Zhou et al. 2019).
Why this rating
Based on multiple large-scale meta-analyses of cohort studies with sample sizes ranging from 15,000 to 200,000 participants.
Source
The links between sleep duration, obesity and type 2 diabetes mellitus
Christina Antza et al. · Journal of Endocrinology · 2021
DOI 10.1530/joe-21-0155
More from this paper
- Both short (<6-7 hours) and long (>9 hours) sleep durations are associated with an increased risk of developing type 2 diabetes mellitus (T2DM) and gestational diabetes mellitus (GDM), with short sleepers having approximately 2 times higher odds of prediabetes/T2DM and long sleepers having 60% higher odds compared to normal sleepers (7-8 hours).Good
- Short sleep duration negatively impacts the efficacy of weight loss interventions, resulting in less fat mass loss and greater weight regain after bariatric surgery compared to adequate sleep.Moderate
Related findings · Energy balance
- Achieving a total body weight loss of 10-15% (or >10-15 kg) through Total Diet Replacement (TDR) induces remission of Type 2 Diabetes in individuals with short-duration disease.Strong
- Bariatric surgery is superior to medical management alone for inducing significant long-term weight loss, remission of type 2 diabetes, and reduction in mortality for patients with BMI ≥ 40 or ≥ 35 with comorbidities.Strong
- Achieving type 2 diabetes remission requires significant weight loss (≥15 kg) via major caloric restriction, independent of macronutrient composition.Strong
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