Stage 4 is known as slow-wave sleep, characterized by an EEG dominated by delta waves, significant muscle relaxation, the lowest vital signs, and difficulty in awakening.
1. Slow wave sleep<div>2. EEG dominated by delta waves</div><div>3. Muscles are very relaxed</div><div>4. VS at lowest</div><div>5. Difficult to awaken</div>
| Front | What is stage 4 of the sleep cycle? |
|---|---|
| Back | 1. Slow wave sleep 2. EEG dominated by delta waves 3. Muscles are very relaxed 4. VS at lowest 5. Difficult to awaken |
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