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SAR / Device Absorption

RF dosimetry: a comparison between power absorption of female and male numerical models from 0.1 to 4 ghz.

No Effects Found

Sandrini L, Vaccari A, Malacarne C, Cristoforetti L, Pontalti R · 2004

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Women absorb more radiofrequency radiation than men due to body composition differences, suggesting current safety standards may inadequately protect half the population.

Plain English Summary

Summary written for general audiences

Researchers created detailed computer models of male and female bodies to study how radiofrequency radiation (the type from cell phones and wireless devices) is absorbed differently between genders from 0.1 to 4 GHz. They found that women's bodies absorb more radiation overall than men's bodies, primarily because women typically have a thicker layer of fat under the skin. However, the peak absorption in small tissue areas was similar between genders, occurring in body regions without much fat tissue.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 4 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 4 GHzPower lines50/60 HzCell phones~1 GHz5G mm28 GHzLogarithmic scale

The study examined exposure from: 0.1 to 4 GHz

Study Details

Realistic numerical models of human subjects and their surrounding environment represent the basic points of radiofrequency (RF) electromagnetic dosimetry. This also involves differentiating the human models in men and women, possibly with different body shapes and postures. In this context, the aims of this paper are, firstly, to propose a female dielectric anatomical model (fDAM) and, secondly, to compare the power absorption distributions of a male and a female model from 0.1 to 4 GHz.

For realizing the fDAM, a magnetic resonance imaging tomographer to acquire images and a recent tech...

The results show that the whole-body-averaged specific absorption rate (WBA-SAR) of the female mode...

Cite This Study
Sandrini L, Vaccari A, Malacarne C, Cristoforetti L, Pontalti R (2004). RF dosimetry: a comparison between power absorption of female and male numerical models from 0.1 to 4 ghz. Phys Med Biol. 49(22):5185-5201, 2004.
Show BibTeX
@article{l_2004_rf_dosimetry_a_comparison_3359,
  author = {Sandrini L and Vaccari A and Malacarne C and Cristoforetti L and Pontalti R},
  title = {RF dosimetry: a comparison between power absorption of female and male numerical models from 0.1 to 4 ghz.},
  year = {2004},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/15609567/},
}
PubMed: 15609567

Cited By (45 papers)

Quick Questions About This Study

Yes, women's bodies absorb more overall radiation than men's bodies from 0.1 to 4 GHz frequencies. This 2004 computer modeling study found women have higher whole-body radiation absorption primarily due to their thicker subcutaneous fat layer under the skin.
Yes, body fat significantly affects radiation absorption from wireless devices. Research shows people with thicker subcutaneous fat layers absorb more overall radiation from 0.1 to 4 GHz frequencies, which explains why women typically show higher whole-body absorption rates than men.
Yes, peak radiation absorption in small tissue areas is similar between men and women. While women absorb more radiation overall, the maximum absorption in 1-gram and 10-gram tissue samples doesn't depend on gender because it occurs in body regions without subcutaneous fat.
Scientists create detailed digital models of male and female bodies to calculate specific absorption rates (SAR) from 0.1 to 4 GHz radiation. These models revealed that tissue composition, particularly fat layer thickness, determines how much radiation different body types absorb from wireless devices.
Yes, subcutaneous fat increases overall wireless radiation absorption from devices operating at 0.1 to 4 GHz frequencies. Research demonstrates that thicker fat layers under the skin lead to higher whole-body absorption rates, though peak absorption in small tissue areas remains unaffected.