Delta Waves (0.5 to 3.5 Hz): The Depths of the Restorative The delta brainwave is characterized as the lowest frequency, noted by its slow waves and high amplitude. It is most commonly observed during deep sleep stages and is associated with essential physiological processes such as restorative rest, tissue repair, and memory consolidation. Theta Waves (4 to 8 Hz): The Gateway to Creativity and Insight These are known to be…