Peter is in a deep sleep and his brain wave pattern consists of low-frequency delta waves.Which stage of sleep is Peter experiencing

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Quizplus · Accepted Answer

Peter's brain wave pattern consisting of low-frequency delta waves indicates that he is in stage 3 or 4 of non-REM (NREM) sleep. These stages are characterized by deep, restorative sleep with slow brain activity and relaxation of the body's muscles. Stage 1 is the transition stage between wakefulness and sleep, while stage 2 is a deeper stage of NREM sleep with brief periods of brain activity known as sleep spindles and K-complexes. REM sleep is characterized by rapid eye movements, vivid dreams, and a more active brain wave pattern similar to wakefulness.

Peter Is in a Deep Sleep and His Brain Wave