If you rely on your smartphone, read "The Extended iSelf Study".

Do you feel panicky, anxious, nervous, unfocused when you forget your smartphone?
Do you have difficulty  thinking without your tablet?  Do you feel you can't function without your smartphone?

Do you have Separation Anxiety Disorder as a result of over reliance on your electronic communication devices?

Review research from the University of Missouri study: "The Extended iSelf:  The Impact of iPhone Seperation on Cognition, Emotion and Physiology": in the Journal of Computer Mediated-Communication.

http://m.huffpost.com/us/entry/6443326