Yes, and if you feed rats on nothing but Big Macs for seven years, they tend to die at the end of it: scaremongering researchers at Sweden’s University of Agricultural Sciences exposed pregnant mice to long periods of magnetic pulses much higher than those emitted by a cathode ray tube, and found twice the incidence of foetal death as compared with mice not so exposed; apart from the futility of the experiment, we just wonder what an agricultural university is doing playing with mice – shouldn’t they devote their attention to things rather nearer their own size, like sheep and pigs and cows and such?