Distractions that are new, and interesting, and perhaps even exciting. They will knock you off track if you let them. They will cause you to lose your focus. With the revolutionary advances in communication technology, distractions have increased in frequency and intensity. Don't ignore distractions altogether or you'll be in danger of developing tunnel vision.
Distractions can often carry useful information or opportunities.
But you must keep them in perspective. Your goals are also important. And if you can't keep yourself focused, information and opportunities will do you no good. So resolve to always make a conscious choice. Decide if the distraction is worth the setback it would cause you.