Effects of pulsed high-frequency electromagnetic fields on human sleep

{
  "study_type": "other",
  "exposure": {
    "band": "RF",
    "source": "mobile phone",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": "healthy humans",
  "sample_size": null,
  "outcomes": [
    "sleep onset latency",
    "REM sleep duration",
    "REM sleep percentage",
    "EEG spectral power density during REM sleep"
  ],
  "main_findings": "Pulsed high-frequency electromagnetic fields from digital mobile radio telephones were associated with shortened sleep onset latency and reduced REM sleep duration and percentage. EEG spectral analysis during REM sleep showed increased spectral power density, described as qualitative alterations of the EEG signal.",
  "effect_direction": "mixed",
  "limitations": [
    "Sample size not reported in abstract",
    "Exposure characteristics (frequency, SAR, duration) not reported in abstract",
    "Study design details not reported in abstract"
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.66,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "pulsed high-frequency electromagnetic fields",
    "digital mobile radio telephones",
    "RF",
    "sleep",
    "sleep onset latency",
    "REM sleep",
    "EEG",
    "spectral analysis"
  ],
  "suggested_hubs": [
    {
      "slug": "mobile-phones",
      "weight": 0.9,
      "reason": "Exposure described as electromagnetic fields of digital mobile radio telephones and effects on human sleep."
    }
  ]
}