HHS-OASH-2026-0397-0959 https://www.regulations.gov/comment/HHS-OASH-2026-0397-0959 Human-made EMF is a novel exposure to which neither human beings nor other life forms are adapted on the basis of biological natural selection. The radiation levels currently present in our environments represent one of the, if not the, most serious cases of evolutionary mismatch. This basic fact urges caution and should inform practical guidelines and regulations.