Of course it can make you crazy, like anything else. You have to close your laptop, put your phone in your purse or pocket, turn the *** mp3 player off, and just spend time face to face with other people, your loved ones, your family, your children, your friends, your pets, your coworkers, just walk down the street or in a park and enjoy the world around you. Sing, draw, paint, knit, go running, hit the gym, make dinner, do something that takes you away from the Net for a little bit. That's 1,000 times better for you than anything you'll find online (sorry, MTO!).