6,486 Studies Reviewed. 85.2% of Original Studies Found Biological Effects. The Evidence is Clear.
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Brain & Nervous System

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Key Finding: 83% of 1,950 primary studies on brain & nervous system found biological effects from EMF exposure.

Of 1,950 studies examining brain & nervous system, 83% found measurable biological effects from EMF exposure.

Lowest Documented Effect

Research found effects on brain & nervous system at exposures as low as:

Study Exposure Level in ContextStudy Exposure Level in Context4.3 × 10⁻⁵ mGExtreme Concern - 5 mGFCC Limit - 2,000 mGEffects documented below the Building Biology "No Concern" threshold (0.2 mG)FCC limit is 46.5 million times higher than this level
View study: Effects of Low-Frequency Electromagnetic Field on Oxidative ...

Research Overview

  • -When you review the peer-reviewed literature on electromagnetic field exposure and brain function, the numbers tell a compelling story: 84% of the 2,753 studies examining this relationship have documented measurable effects.
  • -This isn't a fringe concern or preliminary finding.
  • -This is the dominant scientific picture, and it deserves your attention.

When you review the peer-reviewed literature on electromagnetic field exposure and brain function, the numbers tell a compelling story: 84% of the 2,753 studies examining this relationship have documented measurable effects. This isn't a fringe concern or preliminary finding. This is the dominant scientific picture, and it deserves your attention. The documented effects span multiple systems within your nervous system.

Of 2,753 studies examining EMF effects on the brain and nervous system, approximately 84 percent found measurable biological effects.

The scientific evidence demonstrates that radiofrequency electromagnetic fields from mobile phones and wireless devices produce measurable effects on nervous system function and cellular processes in the brain.

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

Research Statistics by EMF Type

EMF TypeStudiesShowing EffectsPercentage
ELF22920891.00%
RF30522272.00%

Source: Dr. Henry Lai research database

Showing 2,030 studies

Brain & Nervous System

THE EFFECT OF MICROWAVE RADIATION ON EVOKED TACTILE AND AUDITORY CNS RESPONSE IN CATS

Arthur W. Guy, James C. Lin, Fredric A. Harris · 1972

The study exposed cat heads to 915 MHz microwave radiation and measured evoked tactile and auditory CNS responses. Changes in latency and/or amplitude occurred at a mean threshold of about 5 mW/cm2. Temperature rises were always associated with the changes. Variations in results were noted with different electrode compositions, suggesting possible artifacts.

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Symptoms & Sensitivity

A PSYCHOPHYSICAL STUDY OF THE RF SOUND PHENOMENON

A. Frey, R. Messenger, E. Eichert · 1972

The study investigated the RF sound phenomenon, where humans perceive sound when their head is illuminated with pulsed RF energy. In phase one, a portable RF sound demonstration unit operating at 1.2 GHz was assembled and used to demonstrate the phenomenon. Phase two experiments showed that perceived loudness is a function of peak power density once a minimum pulse width is used, and that pulse repetition rate is the dominant parameter for sound quality. A threshold peak power density of 80 mW/cm² was derived by extending the loudness curve, though not with optimal parameters, and average power density was not particularly meaningful for this phenomenon. Phase three found that vocoder technology and periodicity pitch rules could not generate speech perception via RF sound.

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Brain & Nervous System

CHANGE IN METABOLISM OF NITROGENOUS SUBSTANCES IN ANIMAL NERVE TISSUE UNDER EFFECT OF ELECTROMAGNETIC FIELD OF SUPERHIGH FREQUENCY

L. I. Mishchenko, S. P. Frenkel · 1972

Researchers studied ammonia, glutamine, glutamate, amide nitrogen of proteins, AMP, and AMP desaminase activity in the brain of rats exposed to electric and magnetic fields of superhigh frequency. Electric field exposure increased ammonia, amide nitrogen in proteins, and AMP desaminase activity, which the authors suggest may be largely due to a decrease in ammonia and glutamine. Magnetic field exposure decreased ammonia and glutamine while increasing AMP and amide nitrogen in brain proteins.

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Brain & Nervous System

PECULIARITIES OF NITROGEN METABOLISM IN THE RAT BRAIN UNDER EFFECT OF IMPULSIVE ELECTROMAGNETIC FIELD OF LOW FREQUENCY

F. A. Kolodub, H. I. Evtushenko · 1972

Researchers studied nitrogen metabolism in rat brain during exposure to a 7 kHz impulsive electromagnetic field at 24 and 72 kA/m. At 72 kA/m, ammonia and glutaminic acid content decreased while amide nitrogen of proteins was unchanged and adenylic acid desamination and glutamine synthesis were inhibited due to ATP deficit. At 24 kA/m with chronic exposure, ammonia shifts were phase-like and occurred without a corresponding rise in glutamine.

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Whole Body / General

CLINICAL ASPECTS OF IRRADIATIONS IN THE SHF-RANGE

Tyagin, N. V. (Nikolay Vasil'yevich) · 1971

The book presents overall characteristics of SHF fields, their applications, measurement principles, and biological effects on the nervous, cardiovascular, circulatory systems, metabolism, and certain animal and human organs. It discusses mechanisms of action and shows that prolonged repeated irradiations produce clinical manifestations divided into asthenic, vegetative-vascular, and diencephalic syndromes of varying severity. Data on permissible exposure levels, medical expert testimony, and protection measures are presented, indicating that workplace measures can nearly eliminate radiation exceeding allowable limits.

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Learn More

For a comprehensive exploration of EMF health effects including brain & nervous system, 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 & Brain & Nervous System

When you review the peer-reviewed literature on electromagnetic field exposure and brain function, the numbers tell a compelling story: 84% of the 2,753 studies examining this relationship have documented measurable effects. This isn't a fringe concern or preliminary finding. This is the dominant scientific picture, and it deserves your attention. The documented effects span multiple systems within your nervous system.
The SYB Research Database includes 1,950 peer-reviewed studies examining the relationship between electromagnetic field exposure and brain & nervous system. 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.
83% of the 1,950 studies examining brain & nervous system found measurable biological effects from EMF exposure. This means that 1621 studies documented observable changes in biological systems when exposed to electromagnetic fields. The remaining 17% either found no significant effects or had inconclusive results, which is typical in scientific research where study design and exposure parameters vary.