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Biotechnology: - the majority of the radiofrequency energy emitted by a cell phone is absorbed by the hand & head of the user [5] - brain glucose metabolism, assessed by PET is increased in the region of the brain closest to the activated cell phone's antenna - whole-brain glucose metabolism is not affected by cell phone use - significance unknown Adverse effects: 1) associated with increased risk of motor vehicle accident [1] a) 4-fold increase risk within 10 minutes of use b) risk not affected by sex, age, or type of mobile phone used c) both hand-held & hands-free phones associated with increased risk 2) cell phone use may decrease sperm quality [3] as assessed by sperm count, motility, viability, morphology 3) increased risk of brain tumors ? a) association of cell phone use with brain tumors [6,7] b) possibly increased risk of glioma [8] c) cell phone use not linked to brain tumors [9] d) exposure to radiofrequency fields from cell phone use does not likely increase risk of brain cancer [13] 4) parental distraction with cell phone use may increase levels of anxiety in adolescents & predispose them to ADHD [12] Comparative biology: 1) report of increased cancer risk in male Sprague-Dawley rats exposed to radiofrequency cell phone radiation [10] 2) incidence of malignant schwannomas of heart increased with increasing radiofrequency radiation exposure in male rats, at levels beyond that allowed by cell phones [11] 3) no association between radiofrequency radiation exposure & malignant schwannomas in female rats or in mice of either sex [11] 4) equivocal findings of increased neoplasms of brain, prostate, liver, & pancreas in both rats & mice [11] 5) radiofrequency radiation exposure associated with ventricular cardiomyopathy in rats but not mice [11]

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mobile electronic application; smart phone application

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electronic device

References

  1. McEvoy SP et al, Role of mobile phones in motor vehicle crashes resulting in hospital attendance: A case-crossover study. BMJ 2005 Aug 20/27; 331:428-30. PMID: 16012176 http://bmj.bmjjournals.com/cgi/content/full/331/7514/428
  2. Cellular Phones http://www.niehs.nih.gov/external/faq/cellular.htm
  3. Agarwal A et al Effect of cell phone usage on semen analysis in men attending and infertility clinic: An observational study. Fert Steril 2008, 89:124 PMID: 17482179
  4. Prescriber's Letter 17(4): 2010 Is It Safe To Use My Cell Phone In The Hospital? Detail-Document#: 260411 (subscription needed) http://www.prescribersletter.com
  5. Volkow ND et al, Effects of Cell Phone Radiofrequency Signal Exposure on Brain Glucose Metabolism JAMA. 2011;305(8):808-813 PMID: 21343580 http://jama.ama-assn.org/content/305/8/808.short - Lai H and Hardel H Cell Phone Radiofrequency Radiation Exposure and Brain Glucose Metabolism JAMA. 2011;305(8):828-829 PMID: 21343585 http://jama.ama-assn.org/content/305/8/828
  6. Hepworth SJ et al, Mobile phone use and risk of glioma in adults: Case-control study. BMJ 2006; 332:883 PMID: 16428250
  7. NCI: Questions and Answers for the National Cancer Institute Study of Brain Tumors and Use of Cellular Telephones http://www.nci.nih.gov/newscenter/cellphassoc-qa
  8. International Agency for Research on Cancer (IARC) World Health Organization: PRESS RELEASE # 208 IARC CLASSIFIES RADIOFREQUENCY ELECTROMAGNETIC FIELDS AS POSSIBLY CARCINOGENIC TO HUMANS http://www.iarc.fr/en/media-centre/pr/2011/pdfs/pr208_E.pdf
  9. Frei P et al Use of mobile phones and risk of brain tumours: update of Danish cohort study BMJ 2011; 343:d6387 PMID: 22016439 http://www.bmj.com/content/343/bmj.d6387.full - Ahlbom A and Feychting M Mobile telephones and brain tumours BMJ 2011; 343:d6605 PMID: 22016440 http://www.bmj.com/content/343/bmj.d6605
  10. Orciari Herman A, Fairchild DG Cell Phone Radiation Tied to Tumor Risk - in Male Rats. Physician's First Watch, May 31, 2016 David G. Fairchild, MD, MPH, Editor-in-Chief Massachusetts Medical Society http://www.jwatch.org - Report of Partial Findings from the National Toxicology Program Carcinogenesis Studies of Cell Phone Radiofrequency Radiation in Hsd: Sprague Dawley SD rats (Whole Body Exposures) Draft 5-19-2016
  11. National Institute of Environmental Health Studies. News Release, Friday, February 2, 2018, 12:45 p.m. EST High Exposure to Radiofrequency Radiation Linked to Tumor Activity in Male Rats. https://www.niehs.nih.gov/news/newsroom/releases/2018/february2/index.cfm - High Exposure to Radio Frequency Radiation Associated With Cancer in Male Rats. News Release. Thursday, November 1, 2018. https://www.niehs.nih.gov/news/newsroom/releases/2018/november1/index.cfm
  12. Deneault AA, Plamondon A, Neville RD et al Perceived Parental Distraction by Technology and Mental Health Among Emerging Adolescents. JAMA Netw Open. 2024 Aug 1;7(8):e2428261. PMID: 39150710 PMCID: PMC11329881 Free PMC article.
  13. Karipidis K et al The effect of exposure to radiofrequency fields on cancer risk in the general and working population: A systematic review of human observational studies - Part I: Most researched outcomes. Environ Int. 2024 Aug 30:191:108983 PMID: 39241333 Free article https://www.sciencedirect.com/science/article/pii/S0160412024005695