How deep sleep influences or is influenced by physical health.
Deep sleep – the stage of non-REM sleep also known as slow-wave sleep (SWS) – is critically important for muscle recovery and growth. During this phase, the body shifts into a restorative mode: muscles relax, blood flow to muscle tissue increases, and key anabolic hormones are released (What happens during sleep? | NICHD – Eunice … Read more
Key Points Brain Activity and Characteristics Deep sleep, or stage 3 non-REM sleep, features slow delta brain waves, indicating a low-activity state ideal for physical repair. This stage is when the body focuses on restoring energy and repairing tissues. Physical and Physiological Differences During deep sleep, the body experiences increased blood flow to muscles, delivering … Read more