No Measurable Impact of Acute 26 GHz 5G Exposure on Salivary Stress Markers in Healthy Adults
This triple-blind randomized study tested whether 26.5 minutes of 26 GHz (5G) RF exposure at environmental-like levels alters salivary stress biomarkers in healthy adults. Salivary cortisol and alpha-amylase measured before, during, and after exposure did not differ between real and sham conditions. An exploratory subgroup with frequent sampling also showed biomarker stability over time. The study addresses acute exposure only and notes the need for research on repeated or long-term exposures and vulnerable groups.
Key points
- The study evaluated acute 26 GHz (5G) RF exposure for 26.5 minutes at environmental-like field levels.
- Thirty-one healthy adults participated in a triple-blind randomized protocol that included EEG measurements.
- Salivary cortisol showed no significant difference between real RF exposure and sham exposure.
- Salivary alpha-amylase showed no significant difference between real RF exposure and sham exposure.
- A subset of 16 participants underwent an exploratory protocol with cognitive assessment and saliva sampling every 5 minutes.
- The exploratory subgroup analysis found no temporal changes in biomarkers under either real or sham conditions.
- The authors emphasize that the findings apply to short-term exposure and call for studies on longer-term or repeated exposures and at-risk populations.
Referenced studies & papers
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AI-generated summaries may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.
AI-generated summaries may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.
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