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Gaya AR, Brum R, Brites K, Gaya A, de Borba Schneiders L, Duarte Junior MA, López-Gil JF

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Authors not listed · 2023

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Urban height advantages in children have vanished since 1990, coinciding with massive wireless technology expansion.

Plain English Summary

Summary written for general audiences

Researchers analyzed height and BMI data from 71 million children aged 5-19 across 200 countries from 1990 to 2020, comparing urban versus rural populations. They found that the traditional urban advantage in height has largely disappeared in wealthy countries, while BMI differences remained minimal globally. The findings reveal changing patterns of child development linked to urbanization trends.

Why This Matters

While this study doesn't directly examine EMF exposure, it reveals a crucial pattern that EMF researchers should note: the health advantages of urban living are disappearing in developed nations. This coincides precisely with the explosion of wireless technology infrastructure in cities over the past three decades. Urban children today are surrounded by cell towers, WiFi networks, and countless wireless devices that barely existed in 1990. The science demonstrates that EMF exposure can affect growth and development through multiple biological pathways, including hormone disruption and cellular stress responses. What this means for you is that the traditional assumption that cities provide better health outcomes for children may no longer hold true, and EMF exposure could be one contributing factor to this shift.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
Unknown (2023). Gaya AR, Brum R, Brites K, Gaya A, de Borba Schneiders L, Duarte Junior MA, López-Gil JF.
Show BibTeX
@article{gaya_ar_brum_r_brites_k_gaya_a_de_borba_schneiders_l_duarte_junior_ma_lpez_gil_jf_ce3240,
  author = {Unknown},
  title = {Gaya AR, Brum R, Brites K, Gaya A, de Borba Schneiders L, Duarte Junior MA, López-Gil JF},
  year = {2023},
  doi = {10.1038/s41586-023-05772-8},
  
}
DOI: 10.1038/s41586-023-05772-8PubMed: 36991188

Quick Questions About This Study

The study doesn't identify specific causes, but this timeframe coincides with massive increases in urban electromagnetic field exposure from cell towers, WiFi networks, and wireless devices that could potentially affect growth and development.
Boys in sub-Saharan Africa, some Oceania countries, south Asia, and parts of central Asia and the Middle East still show urban height advantages, regions with less wireless infrastructure density.
BMI differences were less than 1.1 kg/m² in most countries, with slightly higher increases in cities except in south Asia, sub-Saharan Africa, and some central and eastern European countries.
Yes, researchers analyzed height and weight measurements from 71 million participants aged 5-19 years across 200 countries and territories from 1990 to 2020, making it globally comprehensive.
By 2020, many high-income western countries showed small urban-based height disadvantages, reversing the historical pattern where city children were consistently taller than rural counterparts.