Living in a time where there is dependency upon electronic devices. Due to this dependency, an existence without them would be almost impossible. However, new technology is not without it is dangers. Doctor Roger Coghill (a specialist in bioelectromagnetics) studied mobile phone users and found that around 40% of people complained of headaches and extreme tiredness. His research has also showed that a seven-and-a-half hour exposure to a mobile phone cause a serious degradation of the white blood cells (the cells which fight disease).