Distracted driving has gained much attention lately because of the inflated crash risk posed by drivers using cellphones to talk and text. But phones aren't just distracting drivers; they make pedestrians inattentive too.

Distracted walking combines a pedestrian, an electronic device and an unseen crack in the sidewalk, the pole of a stop sign, a toy left on the living room floor or a parked (or sometimes moving) car.

There are plenty of examples of the dangers of distracted walking in the two videos embedded in this page. These are also examples of "distracted life" in general:

References:
Forget Gum. Walking and Using Phone Is Risky. NYTimes.
Video: Stop texting while driving. Terrifying. All drivers should watch this.