Effect of Mobile Phone and Bts Radiation on Heart Rate Variability

The exponential increase in the use of mobile phone in recent years raised problem associated of health risk with electromagnetic field exposure (EFE).The electromagnetic field emitted by mobile phone and base station transceiver (BTS) may causes biological effects as they are designed to operate in 900-1800MHz with 12.5% duty cycle. These radiation is non-ionizing type which may have long term biological effect. There are enormous numbers of known and unknown problems due to EFE few known problems are headaches, heaviness in chest, dizziness etc. This paper deals with cardiovascular effect in relation with EFE by analysis on Heart rate variability (HRV) of 19 healthy male volunteers of age group 23±4.3 years in three different condition of EFE level. The ECG was recorded for twenty minutes in order to access all the parameters of HRV. As HRV is not only the best representative of autonomic nervous system (ANS) but also used to access the pathological and physiological conditions. The parameters used in the HRV analysis are frequency domain parameters, sample entropy and scaling exponent. The results clearly show that scaling exponent decreases when higher radiation level is experienced. Mobile phone radiation has caused change in HRV parameters and the change varied with radiation level along with the change in few HRV parameter significance as the p values is  0.05. The significant change in the scaling exponent of DFA promises there is shift of RR time series towards higher HRV at the elevated radiation exposure.