RF Safe argues that “no effect” (null) findings in RF research should be treated as informative constraints rather than dismissed, within its S4–Mito–Spin mechanistic framework. The post claims biological and exposure heterogeneity can produce nonlinear, tissue- and signal-dependent outcomes, making null results an expected pattern under many study conditions. It references a WHO-commissioned systematic review on RF-EMF and oxidative stress biomarkers as concluding the evidence is of “very low certainty,” citing bias, heterogeneity, and exposure/measurement limitations.

This Mendelian randomization study assessed whether duration of mobile phone use is causally related to stroke outcomes using GWAS-derived SNP instruments. The inverse-variance weighted analysis reported a significant increased risk for large artery atherosclerosis (LAAS) with longer mobile phone use duration, while other stroke outcomes showed no significant associations. Sensitivity analyses (including MR-Egger and heterogeneity/asymmetry tests) were reported as suggesting the LAAS finding was robust.