8,700 Studies Reviewed. 87.0% Found Biological Effects. The Evidence is Clear.
Shield Your Body
Cardiovascular

Heart rate variability (HRV) analysis in radio and TV broadcasting stations workers.

Bioeffects Seen

Bortkiewicz A, Gadzicka E, Szymczak W, Zmyślony M. · 2012

View Original Abstract
Share:

Broadcasting workers exposed to radiofrequency EMF for decades showed disrupted heart rhythm control, suggesting chronic stress on the cardiovascular system.

Plain English Summary

Summary written for general audiences

Polish researchers studied heart rate patterns in 71 radio and TV broadcasting workers exposed to radiofrequency EMF for an average of 13-19 years. They found that exposed workers had faster heart rates and altered heart rhythm variability compared to unexposed controls, indicating their nervous systems were stuck in a stressed, fight-or-flight state. This suggests that long-term RF exposure may disrupt the body's ability to regulate heart function through the nervous system.

Why This Matters

This study adds important evidence to our understanding of how radiofrequency EMF affects the cardiovascular system through nervous system disruption. The researchers found that broadcasting workers showed clear signs of autonomic nervous system imbalance, with their sympathetic (stress response) system dominating over their parasympathetic (rest and digest) system. What makes this research particularly significant is that it examined real-world occupational exposures over many years, not just short-term laboratory conditions. The altered heart rate variability patterns observed here mirror findings in other EMF studies and suggest that chronic RF exposure may keep the body in a persistent state of physiological stress. While the exposure levels in broadcasting stations are typically higher than what most people experience from cell phones or WiFi, the duration of exposure (decades) and the clear biological effects raise important questions about cumulative EMF impacts on heart health.

Exposure Information

Specific exposure levels were not quantified in this study.

Study Details

The aim of the study was to assess the mechanism of cardiovascular impairments in workers exposed to UHF-VHF radio frequency electromagnetic fields (EMF).

Heart rate variability (HRV) was analysed using 512 normal heart beats registered at rest. The analy...

In the exposed groups, the heart rate was higher than in the control one. Standard deviation of R-R ...

The results indicate that exposure to radiofrequency EMF may affect the neurovegetative regulation.

Cite This Study
Bortkiewicz A, Gadzicka E, Szymczak W, Zmyślony M. (2012). Heart rate variability (HRV) analysis in radio and TV broadcasting stations workers. Int J Occup Med Environ Health. 25(4):446-455, 2012.
Show BibTeX
@article{a_2012_heart_rate_variability_hrv_1923,
  author = {Bortkiewicz A and Gadzicka E and Szymczak W and Zmyślony M.},
  title = {Heart rate variability (HRV) analysis in radio and TV broadcasting stations workers.},
  year = {2012},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/23224733/},
}
PubMed: 23224733

Cited By (22 papers)

Quick Questions About This Study

Polish researchers found that radio and TV broadcasting workers exposed to radiofrequency EMF for 13-19 years had faster heart rates and altered heart rhythm patterns compared to unexposed workers. The exposed workers' nervous systems showed signs of being stuck in a chronic stress state, suggesting long-term RF exposure may disrupt heart function regulation.
A 2012 study of 71 broadcasting workers found that long-term radiofrequency EMF exposure significantly affected nervous system regulation of the heart. Workers showed dominance of the sympathetic nervous system, indicating their bodies were chronically in fight-or-flight mode rather than maintaining normal balance between stress and relaxation responses.
Broadcasting workers in this study were exposed to radiofrequency EMF for an average of 13-19 years before showing measurable changes in heart rate variability. The researchers found significantly altered heart rhythm patterns and reduced variability in R-R intervals, suggesting these cardiovascular effects develop over years of occupational exposure.
Radio and TV broadcasting employees showed consistently higher heart rates than unexposed controls, along with significantly reduced heart rate variability. Specifically, their standard deviation of R-R intervals was 42.5ms compared to 62.9ms in controls, indicating their hearts had less natural rhythm variation and flexibility.
Research shows broadcast technicians face a 2.37 times higher risk of developing lowered heart rate variability from radiofrequency EMF exposure. The study found their cardiovascular systems were dominated by sympathetic nervous activity, suggesting chronic stress responses that could impact long-term heart health and autonomic nervous system function.