To study the effect of long-term cell phone exposure on physiological and hematological parameters and a single call effect on heart rate, blood pressure and oxygen saturation of healthy male medical students.
The students were divided into two groups: group I (n=22) comprised first year medical students who never were exposed to cell phones and group II (n=35) consisted of final year (fourth year) medical students who were using cell phones for more than four years.
The data showed no significant differences between the groups in basal heart rate, systolic blood pressure, oxygen saturation, or various hematologic parameters. Acute exposure (single call) showed a significant increase in peak heart rate in group II as compared with group I and a significant decrease in peak oxygen saturation in group I as compared with group II. Serum total cholesterol, VLDL-cholesterol, and triglycerides concentrations were significantly higher in group II (long-term cell phone use) than in group I, suggesting a mild alteration of lipid profile among group II subjects.