Research
Hormonal
Sleep restriction (4-5 hours per night) impairs glucose tolerance and insulin sensitivity, increasing the risk of type 2 diabetes and metabolic disorders.
Chronic sleep restriction impairs your body's ability to process glucose, increasing diabetes risk. Prioritize 7-8 hours of sleep to maintain healthy insulin sensitivity and glucose metabolism.
StrongSupportsHIGH confidence
Glucose tolerance was 40% lower at the end of the sleep restriction period than after sleep extension. The insulin profile showed a biphasic pattern with the first phase (corresponding to the rapid release of insulin from the β cells) reduced by 30%, as was the level of C-peptide by 25%. Glucose effectiveness, a measure of non-insulin-dependent glucose uptake, was also reduced by 30% – 40%.
Why this rating
Based on controlled experimental studies with objective metabolic measurements.
Source
Sleep debt and obesity
Virginie Bayon et al. · Annals of Medicine · 2014
narrative_reviewCited 239×
Read the paper This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →