Like anything in life, Facebook can be too much of a good thing,” says Dr. Miller. The phenomenon called Fear of Missing Out (or FOMO) can keep you glued to Facebook and Twitter every waking moment (and then some) -- you also start comparing yourself with friends who inevitably appear as though they’re having more fun. Just keep in mind they’re probably thinking the same about you. “Typically, people share an ideal representation of themselves,” says Dr. Turkle.