DEAR DOCTOR K: I'm starting to think I have an unhealthy addiction to electronic media. I spend a lot of time on social networking sites, on the Internet, playing video games and watching TV. Basically, I think I spend too much time staring at various screens. How bad is this for me?
DEAR READER: We all have habits that we'd be better off without. Sometimes they creep up on us before we notice. If your various types of "screen time" are taking over your life, it's time to take stock. Wanting to change is the necessary first step.