Numerical assessment of induced ELF Currents in the human head due to the battery current of a digital mobile phone.
Ilvonen S, Sihvonen AP, Karkkainen K, Sarvas J. · 2005
View Original AbstractMobile phone batteries create measurable electrical currents in brain tissue through ELF magnetic fields, adding to total EMF exposure beyond just call radiation.
Plain English Summary
Finnish researchers measured the extremely low frequency (ELF) magnetic fields created by mobile phone batteries and calculated how these fields induce electrical currents in the human head and brain. They found that while phones do create measurable electrical currents in brain tissue from their battery operation, these exposure levels remained within international safety guidelines. The study highlights an often-overlooked source of EMF exposure from phones beyond just the radiofrequency radiation used for communication.
Why This Matters
This research reveals an important but rarely discussed aspect of mobile phone EMF exposure. While most attention focuses on the radiofrequency radiation phones emit during calls, this study demonstrates that the battery current itself generates ELF magnetic fields that induce measurable electrical currents in your brain tissue. The reality is that your phone is creating multiple types of EMF exposure simultaneously. Although the researchers found exposures within current guidelines, this adds to the cumulative EMF burden we face daily. What this means for you is that phones represent a more complex exposure scenario than commonly understood, with both RF and ELF components affecting your body even when you're not actively making calls.
Exposure Information
Specific exposure levels were not quantified in this study.
Study Details
In this study, the extremely low frequency (ELF) fields induced in the human head by the battery currents of a mobile phone are considered.
The magnetic field induced by the phone was measured, and this data was used to calculate the result...
The comparison showed that the computed exposure is well within the limits of those guidelines.
Show BibTeX
@article{s_2005_numerical_assessment_of_induced_2223,
author = {Ilvonen S and Sihvonen AP and Karkkainen K and Sarvas J.},
title = {Numerical assessment of induced ELF Currents in the human head due to the battery current of a digital mobile phone.},
year = {2005},
url = {https://www.researchgate.net/publication/7574319_Numerical_assessment_of_induced_ELF_Currents_in_the_human_head_due_to_the_battery_current_of_a_digital_mobile_phone},
}