Visit http://TED.com to get our entire library of TED Talks, transcripts, translations, personalized talk recommendations and more. What really causes addiction — to everything from cocaine to smart-phones? And how can we overcome it? Johann Hari has seen our current methods fail firsthand, as he h
20:32
207:01
18:47
20:36
22:41
25:01
7:57
19:05
54:45
18:27
15:02
31:51
12:53
39:15
27:50
9:48
53:53
20:53
131:40
15:16