I spent some years working in a radio development laboratory, and later working in an office below the largest radio tower in Coventry.

I do have chronic myeloid leukaemia (CML). It is the simplest cancer known: one gene on chromosome 9 has swapped places with one gene on chromosome 22. The effect is to permanently switch white cell production on. It would have been death if it were not for a miracle pill.

There is no evidence to suggest that normal RF has caused the genetic accident.