Requests measurement and research on low-frequency magnetic emissions from displays used by children, dis…

HHS should treat low-frequency magnetic emissions from television and monitor displays as an exposure in this docket, with children's programming first. Current radiofrequency limits are built on heating, specific absorption rate, and power density. They do not describe image-driven magnetic pulses in the band that overlaps the electroencephalogram. Laboratory work by W. Ross Adey and colleagues found frequency-specific changes in calcium binding in brain tissue at field levels that do not heat tissue. U.S. patents to Hendricus G. Loos claim that pulsed images on monitors and television tubes can excite sensory resonances near 1/2 Hz and 2.4 Hz. An observational analysis of the soundtrack of *Meet the Teletubbies* found intermittent energy below 20 Hz, strongest near minutes 51–54. That analysis does not establish a neurological effect or an intent. It does establish a concrete children's-media case. Speaker limits on airborne infrasound do not answer the magnetic-field question. I ask HHS, with FDA and in coordination with the FCC, to require measurement and disclosure of these emissions, to test them under realistic viewing, and to review whether subliminal-content policy covers the physical display. The source is the television or monitor and its associated electronics, driven by ordinary program material. The population I ask HHS to put first is children watching commercial programming, including *Meet the Teletubbies*. The quantity of concern is the extremely-low-frequency magnetic field produced by the display process: image-intensity changes, power circuitry, and, on older tubes, deflection systems. A common objection is that television speakers cannot produce meaningful airborne sound below 20 Hz. That objection answers a different question. Magnetic fields pass through tissue, induce electric fields in the body, and do not depend on the speaker's acoustic cutoff. An observational study of the full program *Meet the Teletubbies* (running time 1:01:43) built an ELF spectrogram of the soundtrack from 0 to 100 Hz and aligned it with the picture. Magnitude below 50 Hz and below 20 Hz was intermittent and at times dense. The strongest sustained cluster below 20 Hz fell near minutes 51–54, during insert and outdoor segments. The study states that these findings do not by themselves establish intent or a neurological effect. They document a children's-program case that should be followed with controlled measurement of the magnetic field at the set, not only of the audio file. Report: https://esui.cc/detail.php?slug=case-observations-sub-audible-elf-signatures-in-meet-the-teletubbies Exposure of this kind is repeated, often daily, during a period of high neural plasticity. A child cannot detect a magnetic pulse and cannot opt out of it. Parents are not given a measurement. I am not submitting a personal symptom diary or any personal health information for this comment.