One Week of Sleep Restriction Reduces Insulin Sensitivity in Healthy Men
Can Just One Week of Poor Sleep Affect Your Blood Sugar Control?
Yes, and the speed is alarming. This controlled study found that restricting healthy men to just 4 hours of sleep per night for one week reduced their insulin sensitivity by 40% compared to normal sleep. Even more concerning, this dramatic metabolic change occurred in previously healthy individuals with no diabetes risk factors, demonstrating how quickly sleep loss can disrupt glucose regulation and push the body toward insulin resistance.