I guess you can't make headlines by claiming that TV rots the brain anymore - the new brain rotting scare is "social media":

Social networking websites are causing alarming changes in the brains of young users, an eminent scientist has warned.

Sites such as Facebook, Twitter and Bebo are said to shorten attention spans, encourage instant gratification and make young people more self-centred

I'm not sure what will be scary twenty years from now, but rest assured - it'll be something :)

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