The number of dark neurons discovered was significantly and positively associated with the RF EMF dose received by the animals. The authors acknowledge that their study sample was small, but state that "the combined results are highly significant and exhibit a clear dose-response relation." The rats used were 12-26 weeks old, comparable in age and development to human teenagers, who the authors note are "notably frequent users of mobile phones." As the group points out, the biologic and maturational processes taking place in the growing brain are particularly vulnerable to damage from exposures of this type.
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