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Fat, water and tissue solids of the whole body less its bone mineral

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T. H. ALLEN, B. E. WELCH, T. T. TRUJILLO, J. E. ROBERTS · 1959

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This foundational 1959 study established that human bodies are 78% water, critical data for understanding EMF tissue interactions.

Plain English Summary

Summary written for general audiences

This 1959 study analyzed the composition of human bodies, measuring the ratios of fat, water, and tissue solids excluding bone mineral in 30 healthy people. Researchers found that bodies contain about 78% water by weight (excluding bone) and developed equations to estimate body composition. The study established baseline measurements for understanding how human tissue density varies based on hydration and fat content.

Why This Matters

While this study predates EMF research by decades, it provides crucial baseline data that modern EMF researchers rely on when studying how electromagnetic fields interact with human tissue. The science demonstrates that our bodies are primarily water-based systems, which matters enormously for EMF exposure because water molecules respond directly to electromagnetic energy. When your phone emits radiation at 900 MHz or 1800 MHz, that energy interacts with the 78% of your tissue that's water. This 1959 research helped establish the dielectric properties that determine how deeply EMF penetrates into different body tissues. Understanding tissue composition remains fundamental to calculating specific absorption rates (SAR) and modeling how wireless radiation distributes energy throughout the body.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
T. H. ALLEN, B. E. WELCH, T. T. TRUJILLO, J. E. ROBERTS (1959). Fat, water and tissue solids of the whole body less its bone mineral.
Show BibTeX
@article{fat_water_and_tissue_solids_of_the_whole_body_less_its_bone_mineral_g5933,
  author = {T. H. ALLEN and B. E. WELCH and T. T. TRUJILLO and J. E. ROBERTS},
  title = {Fat, water and tissue solids of the whole body less its bone mineral},
  year = {1959},
  
  
}

Quick Questions About This Study

Water molecules directly absorb electromagnetic energy, so the 78% water content found in this study determines how EMF penetrates and heats tissue. Higher water content means greater EMF absorption and potential biological effects.
This study showed tissue density ranges from 1.050 to 1.071 based on hydration levels. Denser, more hydrated tissues absorb more EMF energy, while less dense tissues allow deeper penetration of wireless signals.
The study found bone mineral comprises about 10% of tissue solids. Since bone contains less water than soft tissue, it provides some natural shielding against EMF, though wireless radiation still penetrates significantly.
The research showed water content fluctuates between 75-82% depending on recent fluid intake. Higher hydration increases tissue conductivity and EMF absorption, potentially amplifying biological effects from wireless device exposure.
This study established fundamental tissue composition data that modern SAR calculations depend on. Understanding the 78% water content and density variations helps predict how cell phone and WiFi radiation distributes energy in the body.