A rat study in Bioelectromagnetics examined GSM-modulated 3.5 GHz RF-EMF exposure (2 h/day for 30 days) and reported adverse changes in male reproductive hormones, oxidative stress markers, and testicular histology. The authors also tested Coenzyme Q10 (CoQ10) and found it partially ameliorated some RF-associated alterations. The paper notes that because the exposure used a GSM-modulated waveform, findings cannot be extrapolated to FR1 5G NR signals, and calls for further research under real-world conditions.

This RF Safe article argues that debate over non-thermal EMF effects is stalled between experimental findings reporting biological changes at non-heating levels and regulators/industry citing lack of a plausible mechanism. It proposes a “S4–mitochondria–spin” framework in which RF/ELF fields couple into biology through specific entry points (voltage-gated ion channel S4 segments, mitochondrial/NADPH oxidase ROS pathways, and spin-sensitive radical-pair chemistry). The piece claims this model could reconcile reported harms, null findings, and therapeutic uses of low-power RF by emphasizing tissue-specific “density-gating” and waveform/frequency dependence, but it is presented as a theoretical synthesis rather than new empirical evidence.