Posts above have made the point, successfully I think, that EMR from the antennae on the masts hasn't enough strength to affect people by any method we currently know about, but the question remains about radiation from the antenna of the handset. The radiation is non-ionising and the various tests that have been done have all ruled out any "measurable" heating effect.

Given that several epidemiological studies have implicated EMR from mobile phones as causing a very few medical problems, the issue has boiled down the "How or by what method does the EMR cause the problem?"

The two known damaging effects of EMR are ionisation and heating and both have been ruled out at the organism level, the tissue level and the cellular level of analysis. The only level of analysis left is at the subcellular level and, as far as I know, nobody has worked out how to do analyses of the effects of EMR at this level that stand up to scientific scrutiny.

Hence the advice that Keith has passed on. But I've just put beeliner's question in a slightly more formal way, to, hopefully, pinpoint where the studies are likely to go in future.

Cheers, Rowan