Around 7.3 Hours of Sleep May Minimize Insulin Resistance, Study Suggests
A cross‑sectional NHANES analysis found that about 7.32 hours of weekday sleep is linked to the best estimated glucose disposal rate (eGDR), a marker of insulin sensitivity; sleeping more beyond this threshold is associated with lower eGDR. Weekend catch‑up sleep helped those who slept less than 7.32 hours but may worsen insulin resistance if it exceeds two hours, with stronger effects in women, middle‑aged adults, and those with BMI ≥30. The study cannot prove causation and relies on self‑reported sleep, so results should be interpreted cautiously. The takeaway is to aim for consistent 7–8 hours per night and moderate weekend catch‑up if needed.