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Stage 2 Nrem: Differences Between Sleep Spindles And K Complexes

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Stage 2 Nrem: Differences Between Sleep Spindles And K Complexes
• Stage 2 NREM – This stage is considered the onset of true sleep. This is when sleep spindles and K complexes appear. Sleep spindles are bursts of brain activity that last for about a second or two, and K complexes are high-voltage spikes of brain activity. Aside from these, brain activity continues to slow down during stage 2 of NREM. Breathing becomes rhythmical, and delta brain waves, which are even larger and slower than theta waves, start appearing.
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