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BIOLOGICAL EFFECT OF MICROWAVES OF LOW INTENSITY

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Z. V. GORDON, Ye. A. LOBANOVA, I. A. KITSOVSKAYA, M. S. TOLGSKAYA · 1963

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Soviet researchers found biological effects in rats from microwave exposure as low as 1 mW/cm², levels comparable to modern wireless devices.

Plain English Summary

Summary written for general audiences

Soviet researchers in 1963 exposed rats to microwave radiation at intensities between 1-100 mW/cm² across wavelengths from millimeters to 10 centimeters. They found measurable biological effects including temperature changes, reduced swimming endurance, blood pressure alterations, nervous system impacts, and tissue damage even at the lowest intensity tested (1 mW/cm²). This early research demonstrated that microwave radiation could affect living organisms at power levels far below what causes heating.

Why This Matters

This 1963 Soviet study represents some of the earliest systematic research into non-thermal microwave effects, predating widespread consumer wireless technology by decades. The researchers found biological changes at 1 mW/cm², which is significant because many of today's wireless devices can expose you to similar or higher levels during normal use. Your smartphone typically operates around 0.1-2 mW/cm² at your head during calls, while WiFi routers and cell towers can create exposures in this same range at close distances. The study's finding that shorter wavelengths produced less pronounced effects is particularly relevant today, as 5G technology uses increasingly shorter millimeter waves. What makes this research especially noteworthy is that it emerged from the Soviet Union's extensive military research program, which had strong incentives to understand how microwaves might affect human performance and health.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
Z. V. GORDON, Ye. A. LOBANOVA, I. A. KITSOVSKAYA, M. S. TOLGSKAYA (1963). BIOLOGICAL EFFECT OF MICROWAVES OF LOW INTENSITY.
Show BibTeX
@article{biological_effect_of_microwaves_of_low_intensity_g6192,
  author = {Z. V. GORDON and Ye. A. LOBANOVA and I. A. KITSOVSKAYA and M. S. TOLGSKAYA},
  title = {BIOLOGICAL EFFECT OF MICROWAVES OF LOW INTENSITY},
  year = {1963},
  
  
}

Quick Questions About This Study

The researchers tested microwave intensities ranging from 1 to 100 mW/cm² on rats. They found biological effects even at the lowest level of 1 mW/cm², which is comparable to exposures from today's wireless devices like smartphones and WiFi.
The Soviet study found that as wavelength decreased (frequency increased), the biological effects became less pronounced. This finding is relevant to modern 5G technology, which uses shorter millimeter wavelengths than earlier wireless technologies.
Researchers measured temperature changes, lethal effects, reduced swimming endurance, blood pressure alterations, changes in nervous system activity, and tissue damage. These effects occurred across the entire range of intensities tested, from 1-100 mW/cm².
Yes, the Soviet researchers observed biological effects even at the lowest intensity tested of 1 mW/cm². This is significant because this exposure level is within the range of what people experience from modern wireless devices during normal use.
The Soviet researchers used wavelengths between a few millimeters and 10 centimeters. This range covers frequencies similar to modern WiFi, cell phones, and emerging 5G millimeter wave technology, making the findings relevant to current wireless exposures.