8,700 Studies Reviewed. 87.0% Found Biological Effects. The Evidence is Clear.
Shield Your Body
Cancer & Tumors294 citations

(2009) Cell phones and brain tumors: a review including long-term epidemiologic data

Bioeffects Seen

Khurana et al · 2009

View Original Abstract
Share:

Using cell phones for 10+ years doubles brain tumor risk on the side of the head where the phone is held.

Plain English Summary

Summary written for general audiences

Researchers analyzed all 11 long-term studies examining brain tumor risk in people who used cell phones for 10+ years. They found that decade-plus cell phone use approximately doubles the risk of developing brain tumors on the same side of the head where the phone is typically held. The increased risk was statistically significant for gliomas and acoustic neuromas.

Why This Matters

This meta-analysis represents a watershed moment in EMF health research. By requiring a minimum 10-year exposure period and analyzing tumor location relative to phone use patterns, Khurana and colleagues addressed two critical weaknesses in earlier studies: insufficient latency periods and failure to account for exposure patterns. The doubling of brain tumor risk they identified is particularly concerning when you consider that cell phones emit the same type of radiofrequency radiation as WiFi routers, Bluetooth devices, and wireless baby monitors - but at much higher power levels during calls. What makes this finding especially significant is the biological plausibility: the ipsilateral pattern (tumors developing on the same side as phone use) strongly suggests a causal relationship rather than mere coincidence. The telecommunications industry has spent decades downplaying these risks, but this comprehensive analysis of the best available long-term data makes their position increasingly untenable.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
Khurana et al (2009). (2009) Cell phones and brain tumors: a review including long-term epidemiologic data.
Show BibTeX
@article{2009_cell_phones_and_brain_tumors_a_review_including_long_term_epidemiologic_data_ce4644,
  author = {Khurana et al},
  title = {(2009) Cell phones and brain tumors: a review including long-term epidemiologic data},
  year = {2009},
  doi = {10.1016/j.surneu.2009.01.019},
  url = {http://bit.ly/2WTQwfk},
}
DOI: 10.1016/j.surneu.2009.01.019PubMed: 19328536

Quick Questions About This Study

Brain tumors typically take years or decades to develop after initial exposure. Studies with shorter follow-up periods miss this crucial latency period, potentially underestimating cancer risks from cell phone radiation.
Ipsilateral means tumors developed on the same side of the head where people typically held their phone during calls, suggesting a direct relationship between radiation exposure location and tumor formation.
The study found statistically significant increased risk for gliomas (the most common and aggressive brain cancer) and acoustic neuromas (benign tumors affecting hearing nerves), but not meningiomas.
This meta-analysis included all 11 peer-reviewed epidemiological studies that met strict criteria: 10+ year phone use, published research, and analysis of tumor location relative to phone use patterns.
Yes, smartphones emit the same type of radiofrequency radiation as older cell phones studied here. While power levels vary, the fundamental biological interaction mechanism remains the same across phone generations.