I'm a long time psychotherapist and Nicholas Carr's "canary in the coal mine" of a book, "The Shallows" is right on point. I have really competent clients who can no longer concentrate in a meaningful way or fear that they are losing their memory (most are no older that 35!) nd it all has to do with hours and hours of internet and cell phone use. In addition, millions of individuals throughout the world are suffering from internet and phone addictions. This book is a must read for everyone.