
Fortunately, more people are coming around to the idea that sleep is not a luxury. There is strong evidence for how sleep affects learning, obesity, hypertension, insulin sensitivity, and you don’t need a peer-reviewed article to tell you that sleep affects your mood.
Several studies have shown that as you sleep, the glymphatic system is clearing your brain of neurotoxic substances that have accumulated throughout the day, including amyloid-beta, the protein that forms the characteristic plaques in Alzheimer’s. In a vicious cycle, impaired glymphatic function increases the accumulation of amyloid-beta, which …