Delta waves are primarily associated with which stage of sleep?

Delta waves are primarily associated with Stage 3 sleep, which is often termed slow-wave sleep (SWS) or deep sleep. This stage is characterized by the presence of high-amplitude, low-frequency brain waves in the delta range (0.5 to 4 Hz). During Stage 3 sleep, the body experiences various restorative processes, including tissue repair, growth, and immune system strengthening. It is a crucial phase of sleep for physical recovery and memory consolidation. Therefore, recognizing the predominance of delta waves in this stage is essential for understanding sleep architecture and its implications for overall health.