The detailed summary of this article is not available in your language or incomplete. Would you like to see a complete translation of the summary? Then please contact us →
To study the effect of pulsed microwave exposure on heart rate variability in humans.
25 subjects participated (80 % females; age 37-79 years old).
|ばく露時間||continuous for 3 min|
|Repetition frequency||100 Hz|
|ばく露装置の詳細||tests were done at two different locations (Golden and Boulder, Colorado, USA); GS Filters (Graham Stetzer filters, that filter frequencies between 4 kHz and 100 kHz) were installed at both locations before testing; phone (base station) placed 30 cm - 50 cm from the subject's head|
|Sham exposure||A sham exposure was conducted.|
Results of the questionnaire: Based on self-assessments, participants classified themselves as extremely electrosensitive (24 %), moderately (n=16 %), slightly (16 %), not sensitive (8 %) or with no opinion (36 %) about their electrosensitivity. The top 10 symptoms experienced by those claiming to be electrosensitive include memory problems, difficulty concentrating, eye problems, sleep disorder, feeling unwell, headache, dizziness, tinnitus, chronic fatigue, and heart palpitations. The five most common objects allegedly causing sensitivity were fluorescent lights, antennas, mobile phones, WiFi, and cordless phones.
Data of the provocation study: 40 % of the subjects experienced some changes in their heart rate variability attributable to the pulsed microwave exposure. For some the response was extreme (tachycardia), for others moderate to mild (changes in sympathetic nervous system and/or parasympathetic nervous system) and for some there was no observable reaction either because of high adaptive capacity or because of systemic neurovegetative exhaustion.
This is the first study that documents immediate and dramatic changes in both heart rate and heart rate variability associated with microwave exposure at levels well below (0.5 %) guidelines in Canada and the United States (1000 µW/cm²).