I am highly suspicious of these types of reports. I think it fits more with the 'beat the bad man while he's down' behavioral pattern than science. I, of course, could be wrong. It's typical for a hysterical health craze to generate lots of these types of studies.
Power lines lead to hair loss, loss of sexual potency, loss of weight, weight gain, etc.
If the 'bad' thing is bad for you in one way, perhaps it can explain a myriad of other bad things that have no other explanation.