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Related Experiment Videos

Mobile phone headache: a double blind, sham-controlled provocation study.

G Oftedal1, A Straume, A Johnsson

  • 1Faculty of Technology, Sør-Trøndelag University College (HiST), Trondheim, Norway. gunnhild.oftedal@hist.no

Cephalalgia : an International Journal of Headache
|March 16, 2007
PubMed
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This study found no evidence that radio frequency (RF) fields from mobile phones cause head pain or affect physiological responses. Symptoms are likely due to a nocebo effect, not the phone

Area of Science:

  • Electromagnetic fields
  • Human physiology
  • Psychosomatic medicine

Background:

  • Growing concerns link mobile phone radio frequency (RF) exposure to adverse health effects, specifically head pain and discomfort.
  • Individuals reporting symptoms often attribute them to mobile phone use, but not electromagnetic fields generally.
  • Previous studies have yielded inconclusive results, necessitating further investigation.

Purpose of the Study:

  • To investigate whether radio frequency (RF) fields from mobile phones induce head pain or discomfort.
  • To assess the influence of RF exposure on physiological variables in sensitive individuals.
  • To differentiate between specific RF effects and a potential nocebo response.

Main Methods:

  • A double-blind, randomized, cross-over provocation study involving 17 individuals reporting symptoms.

Related Experiment Videos

  • Comparison of mobile phone RF exposures against sham exposures (65 pairs).
  • Assessment of pain and discomfort using visual analogue scales and monitoring of heart rate and blood pressure.

    • Main Results:

    • No statistically significant difference in reported pain or discomfort between RF and sham exposures (10.1 vs 12.6, P=0.30).
    • No significant changes in heart rate or blood pressure related to the type of exposure (P: 0.30-0.88).
    • Subjective symptom reporting did not correlate with actual RF exposure.

    Conclusions:

    • The study provides no evidence that mobile phone RF fields cause head pain, discomfort, or alter physiological variables.
    • The observed symptoms in participants are most likely attributable to a nocebo effect.
    • Findings suggest that psychological factors play a significant role in symptom perception related to mobile phone use.