There’s growing concern among scientists that indulging in these ceaseless disruptions isn’t good for our brains, in much the way that excessive sugar or fat – other things we evolved to crave when they were in shorter supply – isn’t good for our bodies…

A study by the Kaiser Family Foundation released in January 2010 concluded that 8- to 18-year-olds devote an average of seven hours and 38 minutes to entertainment media per day. But because they dedicate so much of that time using more than one medium at once – say, scanning Facebook as they listen to music and chat with friends – they actually pack in about 10 hours and 45 minutes of content in that period.

That’s up considerably from just five years earlier, when kids spent six hours and 21 minutes squeezing in eight hours and 33 minutes of content.