{
  "url": "https://dantelabs.com/traits/abnormal-movement-during-sleep",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "abnormal-movement-during-sleep",
    "id": "HP:5200300",
    "name": "Abnormal movement during sleep",
    "definition": "Periodic Limb Movement Disorder, also known as Sleep-Related Myoclonus Syndrome or Nocturnal Myoclonus Syndrome, refers to the periodic and stereotypic movements of the legs or upper limbs during sleep.",
    "synonyms": [
      "Nocturnal myoclonus syndrome",
      "Periodic limb movement disorder"
    ],
    "systems": [
      {
        "slug": "abnormality-of-the-nervous-system",
        "name": "Abnormality of the nervous system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-nervous-system"
      }
    ],
    "broader": [
      {
        "slug": "parasomnia",
        "name": "Parasomnia",
        "url": "https://dantelabs.com/traits/parasomnia"
      }
    ],
    "narrower": [
      {
        "slug": "bruxism",
        "name": "Teeth grinding",
        "genes": 45,
        "url": "https://dantelabs.com/traits/bruxism"
      },
      {
        "slug": "restless-legs",
        "name": "Willis-Ekbom disease",
        "genes": 29,
        "url": "https://dantelabs.com/traits/restless-legs"
      },
      {
        "slug": "sleep-walking",
        "name": "Sleep walking",
        "genes": 7,
        "url": "https://dantelabs.com/traits/sleep-walking"
      },
      {
        "slug": "rem-sleep-behavior-disorder",
        "name": "REM sleep behavior disorder",
        "genes": 3,
        "url": "https://dantelabs.com/traits/rem-sleep-behavior-disorder"
      }
    ],
    "genes": []
  }
}