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Cell phones have become indispensable devices in our daily
life. These phones operate between 400 MHz and 2000 MHz
frequency bands and emit radiofrequency electromagnetic
waves (EMW). Reports of potential adverse effects of radiofrequency
EMWon brain, heart, endocrine system, and DNA
of humans and animals are widely reported in the literature.
Electromagnetic waves alter brain electroencephalographic
activity and cause disturbance in sleep (1); cause difficulty
in concentration, fatigue, and headache (2); and increase reaction
time in a time-dependent manner (3). They increase
the resting blood pressure (4) and reduce the production of
melatonin (5).
REFERENCES
1. Huber R, Graf T, Cote KA, Wittmann L, Gallmann E, Matter D, et al.
Exposure to pulsed high-frequency electromagnetic field during waking
affects human sleep EEG. Neuroreport 2000;11:3321–5.
2. Oftedal G, Wilen J, Sandstrom M, Mild KH. Symptoms experienced
in connection with mobile phone use. Occup Med (Lond) 2000;50:
237–45.
