The power of a good night’s sleep: Proper rest potential remedy for insulin management and cognitive decline

10 Jul 2023 — Deep-sleep brain waves might control blood sugar and insulin resistance as non-rapid eye movement sleep improves the next-day peripheral glucose control, according to US-based researchers. Meanwhile, a study in the UK found that physical activity may not protect from cognitive decline if sleep duration is less than six hours per night. 

The US study, published in Cell Reports Medicine, investigated why poor sleeping increases the risk of developing diabetes. Brainwaves in a deep sleep at night are better at regulating insulin sensitivity, which improves blood sugar control the next day.