Is it socially or physically dangerous to answer yahoo questions. Can I keep doing this and feel safe?

I have heard it said that the computer has made it possible to isolate ourselves and become depressed or morph into a lunatic or something else more or less as unattractive and unappealing.. .Is this true? Are we who spend four or six or more hours a day staring at the screen warping our intellects , diminishing our chances of finding meaningful relationships and curving our spines into pretzels? Will we ever get jobs or a life?