suggests microwaves produce non-thermal effects.
A study by de Pomerai and his colleagues in Nature suggests that
to low-intensity microwave fields may produce biological effects
that are non-thermal. The authors found that the microwave fields
induced heat-shock responses in the soil nematode Caenorhabditis
elegans, and present evidence that these responses are non-thermal.
They suggest that "because of the universality of the heat-shock
response, a similar non-thermal induction might also occur in human
tissues exposed to microwaves, a possibility that needs investigation".
de Pomerai D, Daniells C, David H, Allan J, et al. Non-thermal heat-shock
response to microwaves. Nature 2000;405:417-418.
Microwaves fail to increase tumour rate in
In November 1999 "What's New Archives" a study was reviewed
that examined the effects of RF exposures simulating digital phones
on the development of brain tumours in rats. A non-significant trend
towards increased survival was seen in the rats exposed to RF fields.
The same authors - Adey et al. - now report a study in which the
RF exposure was similar to that seen in analogue phones. No effects
were found to be associated with lifetime exposure of the rats to
frequency-modulated microwave fields.
Adey WR, Byus CV, Cain CD, Higgins J, et al. Spontaneous and nitrosourea-induced
primary tumors of the central nervous system in Fischer 344 rats
exposed to frequency-modulated microwave fields. Cancer Research
Another study on EEGs in humans.
Finnish researchers have reported changes in the EEG
in healthy volunteers exposed to an electromagnetic field of 902
For more details, see "Research
- Clinical -EEG".
Krause CM, Sillanmaki L, Koivisto M, Haggquist A, et al. Effects
of electromagnetic field emitted by cellular phones on the EEG during
a memory task. Neuroreport 2000;11:761-764.