7 hours 18 mins may be optimal sleep length for avoiding type 2 diabetes precursor

Sleeping for 7 hours and 18 minutes every night may be the sweet spot for warding off the risk of insulin resistance—the precursor to type 2 diabetes—suggests a large observational study published in the open access journal BMJ Open Diabetes Research & Care. But weekend catch-up sleep is associated with a heightened risk of impaired glucose metabolism in those who sleep beyond the optimal threshold every night, the findings indicate.