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.
| Exposure | Parameters |
|---|---|
|
Exposure 1:
900 MHz
Exposure duration:
150 phone calls/month (total duration: 500 min/month) for more than 4 years
long term exposure
|
- |
|
Exposure 2:
900 MHz
Exposure duration:
1 min
|
- |
| Frequency | 900 MHz |
|---|---|
| Type | |
| Exposure duration | 150 phone calls/month (total duration: 500 min/month) for more than 4 years |
| Additional info | long term exposure |
| Exposure source |
|---|
No parameters are specified for this exposure.
| Frequency | 900 MHz |
|---|---|
| Type | |
| Exposure duration | 1 min |
| Additional info | acute exposure |
| Additional info | tri band EGSM |
| Exposure source |
|
|---|
No parameters are specified for this exposure.
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.
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