Human sleep consists of five stages: rapid eye movement (REM) sleep, characterized by sharp horizontal eye movements, and four stages of non-rapid eye movement (NREM) sleep.

Authors

• Person: Not available Organization: Berkeley Scientific Journal
  From Giants to Jellyfish: The Evolution of Sleep Across Species

Sources

• From Giants to Jellyfish: The Evolution of Sleep Across Species bsj.studentorg.berkeley.edu Berkeley Scientific Journal via serper

Referenced by nodes (1)

• REM sleep concept