There are millions and millions of mobile phone users around the world. However, the industry insists that emissions are too low to be hazardous. Mobile phones, both analogue and digital, use microwaves, similar to those in microwave ovens, although they are at a slightly different frequency and much lower power. The concerns stem from their closeness to heads when calls are made or received. Scientists previously assumed that energy absorbed by the head was evenly distributed, but the latest research suggests that waves concentrate on the skull, creating "hot spots". …
