"The Vital Importance of One Sleep Stage: Expert Explanation"

Healthy sleep consists of four stages per sleep cycle, with each stage serving a vital function in ensuring adequate rest. The stages include N1, N2, N3, and REM, with N3, the deep sleep stage, being the most crucial for overall sleep quality. It is during N3 that the glymphatic system removes waste products from the brain, supplies essential nutrients, and regulates moods. Interrupted sleep can lead to cognitive fogginess and other issues, emphasizing the importance of maintaining a regular sleep/wake schedule to avoid disrupting natural sleep cycles.