As I see it, these effects, if they exist at all, are pretty small. There have been numerous epidemiological studies of mobile phone use including some with good design and high numbers. None have found anything more than what looks like noise and, importantly, no one has found a dose-related link between health outcomes and mobile use time. In comparison, a dose-related relationships can be found between health and alcohol consumption, exercise, time viewing tv, and so on. This doesn't eliminate a possible health effect is just makes it very small. If you're worried about mobile phone usage, you'd be better off to stop worrying and walk up two flights of stairs every day.
As for feeling the effect of phone use, eg, feeling light headed after calls, there could be numerous other explanations for what is felt. The effect of changes in posture and breathing would be the first things I would check out as this is a known effect. There was a study done a few years back where gizmos with phone-like emf emissions were strapped to people's heads and IIRC double blind testing found that people could not tell if the device was off or on, nor did effects show up in standard psychological tests. Again, this doesn't disprove the effect but it does place limits on it. It would be really interesting to put some EHS sufferers through a double blind test. People believe anything, especially scarey anything, and beliefs have physiological effects. Transcranial electrical and magnetic stimulation are known effects - though these use more energy and aren't at the frequencies of mobile phones. These are interesting for their positive effects though there are some low frequency risks, including: feeling faint. Jim _______________________________________________ Link mailing list [email protected] http://mailman.anu.edu.au/mailman/listinfo/link
