Identifying Stages of Non-REM Sleep

Medium Unit 10: States Of Consciousness Sleep And Dreams

Research has shown that the sleep cycle consists of multiple stages, including non-REM and REM sleep. Non-REM sleep is further divided into three stages, and these stages play important roles in physical and mental health.
Which of the following statements accurately describes one of these stages of non-REM sleep?

Stage 1 is characterized by slow brain waves and is the deepest stage of sleep.

Stage 2 includes sleep spindles and K-complexes, indicating a transition to deeper sleep.

Stage 3 is known for heightened physiological activity and vivid dreaming.

Stage 1 is when the body is most active and can easily be awakened.

Stage 2 is the final stage of non-REM sleep, leading directly to REM sleep.

Hint

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