6,486 Studies Reviewed. 85.2% of Original Studies Found Biological Effects. The Evidence is Clear.
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Symptoms & Sensitivity

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Key Finding: 81% of 324 primary studies on symptoms & sensitivity found biological effects from EMF exposure.

Of 324 studies examining symptoms & sensitivity, 81% found measurable biological effects from EMF exposure.

Lowest Documented Effect

Research found effects on symptoms & sensitivity at exposures as low as:

Study Exposure Level in ContextStudy Exposure Level in Context5.2 µW/m²Extreme Concern - 1,000 µW/m²FCC Limit - 10M µW/m²Effects observed in the Slight Concern range (Building Biology)FCC limit is 1.92 million times higher than this level
View study: Effects of Exposure to GSM mobile phone base station signals...

Research Overview

  • -The scientific evidence on EMF-related symptoms is substantial: 81% of 444 studies examining this relationship documented measurable health effects.
  • -This isn't a fringe finding-it represents a significant body of peer-reviewed research showing that electromagnetic field exposure triggers real physiological responses in a substantial portion of the population.
  • -What this means for you is that if you're experiencing unexplained symptoms, the cause may be environmental rather than psychological.

The scientific evidence on EMF-related symptoms is substantial: 81% of 444 studies examining this relationship documented measurable health effects. This isn't a fringe finding-it represents a significant body of peer-reviewed research showing that electromagnetic field exposure triggers real physiological responses in a substantial portion of the population. What this means for you is that if you're experiencing unexplained symptoms, the cause may be environmental rather than psychological. The documented effects cluster around several key areas.

When 81 percent of peer-reviewed studies find measurable biological effects from EMF exposure, we're not talking about fringe science or isolated findings.

Based on this section of the BioInitiative Report 2012, the scientific evidence demonstrates clear neurological and behavioral effects from radiofrequency radiation exposure, particularly from mobile phone use.

Source: BioInitiative Working Group. BioInitiative Report: A Rationale for Biologically-based Public Exposure Standards for Electromagnetic Radiation. Edited by Cindy Sage and David O. Carpenter, BioInitiative, 2012, updated 2020. www.bioinitiative.org

Showing 357 studies

Brain & Nervous System

The Sensation of Hearing in Electromagnetic Fields

Clyde E. Ingalls

Experiments showed that radar transmitters operating at 1, 3, and 10 k Mc/sec could be heard. The hearing occurred without using the ear, as window screening blocked the sound but placing the ear through a hole in the screen did not restore it, while only a spot on the head above the forehead allowed perception. The author concluded that neither air nor bone conduction explains the effect and that direct nervous system involvement is more likely.

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Whole Body / General

RESPONSE OF MAN TO HIGH INTENSITY THERMAL RADIATION

J. D. Hardy, D. Murgatroyd

Pain reports were predictably related to skin temperature at the end of exposure, not to irradiance or exposure time alone. On the face, pain threshold temperature did not change significantly with area size, varying between subjects from 43.3°C to 46.9°C. Whole anterior or posterior body exposure lowered the pain threshold to about 43°C and was described as intolerable.

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Symptoms & Sensitivity

Attempts to Cue Successful Escape From A Highly Intense Microwave Field by Photic Stimulation

Unknown authors

Researchers exposed groups of hooded rats to a 918-MHz microwave field at 60 mW/g and tested escape learning under four conditions. Escape was reinforced by immediate cessation of radiation when the rat entered a safe area, while a control group received faradic shock cessation. Rats given foot shock learned to escape rapidly, and rats with microwave cessation paired with a light cue also learned but more slowly. Rats exposed to microwave alone showed weak learning after 15 trials but did not differ statistically from rats that received only light cessation.

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Brain & Nervous System

EFFECT OF CHRONIC EXPOSURE TO AN ELECTRIC FIELD ON SUBSEQUENT DISCRIMINATION OF ELECTRIC FIELDS

Unknown authors

Researchers exposed male Sprague Dawley rats to a 100 kV/m 60-Hz electric field for 30 days at 22 hours per day or gave them sham exposure. After exposure, rats were tested in a shuttlebox with one end shielded and the other exposed at field strengths of 0, 25, 50, 75, or 100 kV/m. Pre-exposed rats spent significantly more time in the exposed region at 25 kV/m than sham pre-exposed controls. Within the pre-exposed group, exposed side residence was higher across field strengths, while sham pre-exposed rats spent more time on the shielded side.

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Brain & Nervous SystemNo Effects Found

THE EFFECT OF 9.31 GHZ PULSED MICROWAVE IRRADIATION ON THE LEVER PRESS BEHAVIOR OF OPERANTLY RESPONDING RHESUS MONKEYS

Unknown authors

Twelve rhesus macaques were trained to press a lever for apple juice while positioning their heads in front of a 9.311 GHz microwave horn. The microwave delivered a 0.5 μs pulse at an average power density of 150 mW/cm² at the monkey's head. Over 20 sessions of 15 minutes each, with 10 irradiation and 10 non-irradiation sessions, the combined mean lever press rate did not differ significantly. Individual monkeys showed significant differences in lever press rates between irradiation conditions. A transition experiment on 6 monkeys found no statistically significant effect on mean lever press rate when the radiation was switched on or off.

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Learn More

For a comprehensive exploration of EMF health effects including symptoms & sensitivity, along with practical protection strategies, explore these books by R Blank and Dr. Martin Blank.

Overpowered: The Dangers of Electromagnetic Radiation book cover

Overpowered: The Dangers of Electromagnetic Radiation

Dr. Martin Blank & R Blank

Read on Amazon
Empowered: A Practical Guide to Protecting Yourself from EMF book cover

Empowered: A Practical Guide to Protecting Yourself from EMF

R Blank

Read on Amazon

FAQs: EMF & Symptoms & Sensitivity

The scientific evidence on EMF-related symptoms is substantial: 81% of 444 studies examining this relationship documented measurable health effects. This isn't a fringe finding-it represents a significant body of peer-reviewed research showing that electromagnetic field exposure triggers real physiological responses in a substantial portion of the population.
The SYB Research Database includes 324 peer-reviewed studies examining the relationship between electromagnetic field exposure and symptoms & sensitivity. These studies have been conducted by researchers worldwide and published in scientific journals. The research spans multiple decades and includes various types of EMF sources including cell phones, WiFi, power lines, and other common sources of electromagnetic radiation.
81% of the 324 studies examining symptoms & sensitivity found measurable biological effects from EMF exposure. This means that 261 studies documented observable changes in biological systems when exposed to electromagnetic fields. The remaining 19% either found no significant effects or had inconclusive results, which is typical in scientific research where study design and exposure parameters vary.