8,700 Studies Reviewed. 87.0% Found Biological Effects. The Evidence is Clear.

Radiofrequency Radiation Alters the Immune System: Modulation of T- and B-lymphocyte Levels and Cell-Mediated Immunocompetence by Hyperthermic Radiation

Bioeffects Seen

Robert P. Liburdy · 1979

Share:

26 MHz radiofrequency radiation suppressed mouse immune function by triggering stress hormones, not just heat effects.

Plain English Summary

Summary written for general audiences

Researchers exposed mice to 26 MHz radiofrequency radiation that raised their body temperature by 2°C, finding it caused a drop in immune cells and suppressed immune function. The radiation triggered stress hormone release and altered the distribution of immune cells throughout the body. This suggests RF radiation can weaken immune defenses through heat-related stress responses.

Why This Matters

This 1979 study reveals a concerning connection between radiofrequency radiation and immune system suppression that remains relevant today. The 26 MHz frequency used falls within the range of various radio communications and industrial heating applications we encounter daily. What makes this research particularly significant is that it demonstrates RF radiation's ability to compromise immune function not just through direct cellular damage, but through triggering the body's stress response system. The study showed that even brief exposures caused dramatic increases in stress hormones, leading to immune cell depletion and reduced ability to mount immune responses. While modern wireless devices operate at different frequencies, the underlying mechanism of RF-induced stress responses and subsequent immune suppression warrants serious consideration given our unprecedented levels of daily RF exposure from cell phones, WiFi, and other wireless technologies.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
Robert P. Liburdy (1979). Radiofrequency Radiation Alters the Immune System: Modulation of T- and B-lymphocyte Levels and Cell-Mediated Immunocompetence by Hyperthermic Radiation.
Show BibTeX
@article{radiofrequency_radiation_alters_the_immune_system_modulation_of_t_and_b_lymphocy_g59,
  author = {Robert P. Liburdy},
  title = {Radiofrequency Radiation Alters the Immune System: Modulation of T- and B-lymphocyte Levels and Cell-Mediated Immunocompetence by Hyperthermic Radiation},
  year = {1979},
  
  
}

Quick Questions About This Study

Yes, this study found that 26 MHz RF radiation caused lymphopenia (immune cell depletion) and suppressed delayed-type hypersensitivity responses in mice, indicating compromised immune function beyond simple heating effects.
Yes, plasma corticoid (stress hormone) levels were several-fold higher immediately after RF exposure compared to control mice, suggesting RF radiation activates the body's stress response system.
Three RF exposures delivered at 3-hour intervals led to significant decreases in thymic weight and cell density, indicating progressive immune organ damage with repeated exposures.
The 26 MHz radiofrequency radiation caused a 2°C increase in core body temperature over 15 minutes of whole-body exposure in the mice.
No, warm air exposure that produced the same 2°C temperature increase only elevated B-lymphocytes with no immune function changes, proving RF radiation has unique biological effects.