The U.S. Centers for Disease Control and Prevention updated its public "About Non-Ionizing Radiation" explainer on June 15, 2026. The refresh keeps the same thermal-only framing of radiofrequency and microwave risk that has been on the page for years — no new guidance, no acknowledgement of non-thermal biological effects.
"Intense, direct exposure to radiofrequency and microwave radiation may result in damage to tissue due to heat. These more significant exposures could occur from industrial devices in the workplace."
— U.S. Centers for Disease Control and Prevention
