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A REVIEW OF THE BIOLOGICAL EFFECTS OF VERY LOW MAGNETIC FIELDS

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Charles C. Conley · 1970

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Living organisms show measurable biological changes in magnetic fields weaker than Earth's natural field.

Plain English Summary

Summary written for general audiences

This 1970 review examined the first studies of how extremely weak magnetic fields (weaker than Earth's natural field) affect living organisms. Researchers found that plants, simple animals, and even mice showed changes in growth, reproduction, aging, and cellular functions when exposed to these nearly absent magnetic fields.

Why This Matters

This pioneering review reveals something remarkable: life responds to magnetic fields so weak they're barely detectable. The fact that organisms from plants to mammals showed measurable changes in nearly zero magnetic fields suggests our biology is exquisitely sensitive to magnetic environments. What this means for you is profound. If life responds to fields weaker than Earth's natural magnetism, consider the implications of the much stronger artificial magnetic fields we now encounter daily from power lines, appliances, and wireless devices. The research shows reduced enzyme production in mice and altered basic life functions across species. While this 1970 work predates our current EMF-saturated world, it establishes a crucial foundation: magnetic field sensitivity isn't just real, it's fundamental to biological processes.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
Charles C. Conley (1970). A REVIEW OF THE BIOLOGICAL EFFECTS OF VERY LOW MAGNETIC FIELDS.
Show BibTeX
@article{a_review_of_the_biological_effects_of_very_low_magnetic_fields_g7029,
  author = {Charles C. Conley},
  title = {A REVIEW OF THE BIOLOGICAL EFFECTS OF VERY LOW MAGNETIC FIELDS},
  year = {1970},
  
  
}

Quick Questions About This Study

Multiple species showed altered growth, reproduction, aging, and cellular functions when exposed to magnetic fields weaker than Earth's natural field, suggesting fundamental biological sensitivity to magnetic environments.
Yes, mice exposed to very low magnetic fields showed reduced enzyme synthesis rates in living tissue, though the same effect wasn't seen in laboratory cell cultures.
Lower invertebrates, protozoans, and plants showed clear sensitivity to magnetic field direction and strength, with behavioral and growth changes documented in controlled experiments.
The study examined both nearly zero magnetic fields and Earth-strength fields, finding biological effects at both levels, indicating sensitivity across a wide range of magnetic intensities.
Researchers documented changes in growth rates, reproductive processes, aging patterns, behavioral responses, immune cell activity, and cellular enzyme production across multiple species.