DNA Damage of Lymphocytes in Volunteers after 4 hours Use of Mobile Phone.
Ji S, Oh E, Sul D, Choi JW, Park H, Lee E. · 2004
View Original AbstractFour hours of cell phone use caused measurable DNA damage in immune system cells of healthy adults.
Plain English Summary
Researchers tested 14 healthy adults who talked on cell phones for 4 hours straight, measuring DNA damage in their blood cells before and after exposure. The study found statistically significant increases in DNA damage markers in two types of immune cells (B-cells and granulocytes) after the 4-hour phone use. This suggests that extended cell phone conversations may cause measurable genetic damage to blood cells, though the long-term health implications remain unclear.
Why This Matters
This study provides direct evidence that cell phone radiation can cause DNA damage in human blood cells after just 4 hours of use. What makes this research particularly significant is that it measured actual genetic damage in real people using real phones, not just laboratory cell cultures or animal studies. The 4-hour exposure duration, while longer than typical single conversations, is well within the range of daily phone use for many people when you add up calls, texting, and other phone activities throughout the day. The fact that DNA damage occurred in immune system cells (B-cells and granulocytes) raises important questions about potential impacts on your body's ability to fight disease and repair itself. While this is a relatively small study that would benefit from replication, it adds to a growing body of evidence suggesting that our current safety standards may not adequately protect against the biological effects of radiofrequency radiation.
Exposure Information
Specific exposure levels were not quantified in this study. Duration: 4 hours
Study Details
This study has been designed to identify DNA damage of blood cells by electromagnetic radiation caused by cell phone use.
This study investigated the health effect of acute exposure to commercially available cell phones on...
The Olive Tail Moment of B-cells and granulocytes and Tail DNA % of B-cells and granulocytes were in...
It is concluded that cell phone radiation caused the DNA damage during the 4 hours of experimental condition. Nonetheless, this study suggested that cell phone use may increase DNA damage by electromagnetic radiation and other contributing factors.
Show BibTeX
@article{s_2004_dna_damage_of_lymphocytes_1791,
author = {Ji S and Oh E and Sul D and Choi JW and Park H and Lee E.},
title = {DNA Damage of Lymphocytes in Volunteers after 4 hours Use of Mobile Phone.},
year = {2004},
url = {https://pubmed.ncbi.nlm.nih.gov/25175620/},
}