Analysis of biological effects of cell phone radiation on human body using specific absorption rate and thermoregulatory response

Abstract

Overview

Health and science communities are increasingly intersecting with public concerns about the potential health hazards of electromagnetic fields from cell phones. This study provides vital insights into these potential risks by investigating the Specific Absorption Rate (SAR) and subsequent thermal responses in human tissues.

Methodology

Using the ANSYS 3D human body model, the research calculates average SAR in various tissues by varying the source-to-antenna distances and radiated power levels. The Pennes bioheat transfer equation helps in understanding the long-term exposure effects and related temperature increase within the tissues.

Findings

• Temperature increases were found to be minimal at lower power levels (less than 125 mW).
• At a high power level of 1 W, temperature in the tissues could increase up to eight and a half times, suggesting significant thermal effects.
• The study also observed high SAR values in brain-related tissues at frequencies above 2.1 GHz, especially when the antenna was close to the head.

Moreover, an indirectly proportional relationship between the SAR and the distance from the source was noted, with greater distances leading to notable reductions in SAR.

Conclusion

The study concludes that under extreme conditions of high radiated power, while the temperature increase is substantial, it is still below the critical thermal threshold of 42 degrees centigrade. Nonetheless, this highlights a significant risk, as continued exposure could potentially lead to health issues.