I heard about this on the news too....during lunch time at work...hehe you should've heard everyone saying "well, we're screwed" =P
but yeah~ I'm sure they'll do more analysis and a more general investigation. Like they said it was a limited study with mainly males, and I suspect mainly with Japanese people.
But in any case, excessive use of the computer is a bad thing. Even if you work on a computer all day it's a good thing to get up, go get a drink or something at LEAST every two hours.