I'd agree with Hal personally.
Electrical work as it is, is a very manual occupation, this can open up all sorts of problems with the body.
I have a mate who is an Electrician who is going to get the Varicose veins removed from his legs, caused by standing up at panels, this is the bulk of his work.
Good points about the effects of using screwdrivers on the wrists, a lot of people would not realise just how much energy it takes to use a screwdriver, especially where you have to drive a screw with a long fine thread (Switch screws come to mind).
From the viewpoint of a Lineman, the most concerning thing for us is Melanoma from working out in the sun.
Not proven, but EMF damage to the body is a constant worry working around any sort of voltage.
Most of the problems I've had as an Electrician is damage and inflammation of my knees from working up in roof spaces.
Or as I hate to admit, banging my head on bits of timber up in the said roof space.