The National Sleep Foundation recommends that adults get 7–9 hours of sleep every night (7–8 if you’re over 65)1. So what if you got, say, five-and-a-half or six last night? A little sleep debt is ok, right? Not according to researchers from Weill Cornell Medical College in Qatar. At the Endocrine Society’s annual conference in San Diego, they announced:
Losing just 30 minutes of sleep per week can spike your risk of being obese or developing type 2 diabetes:2
- At the start of the study, the 500+ participants were 72% more likely to be obese if they had weekday sleep debt vs. those who didn’t.
- One year into the study, participants had a 17% higher risk of obesity and a 39% higher risk of insulin resistance (a precursor to type 2 diabetes) for every 30 minutes of weekday sleep debt.