Web use changes the brain?

I wasn't too surprised to see this week's BBC article on how web addiction changes the brain. In my previous job I was on the computer and the web for 7-8 hours a day and I definitely feel that it had an adverse emotional effect on me.  I feel much better now that I'm on the computer for only a couple of hours a day and getting much more fresh air!  As the article says: "We are finally being told what clinicians suspected for some time now, that white matter abnormalities in the orbito-frontal cortex and other truly significant brain areas are present not only in addictions where substances are involved but also in behavioral ones such as internet addiction." 
http://www.bbc.co.uk/news/health-16505521