Dr. Frances Jensen, author of The Teenage Brain, talks with Mike Barnicle and the Morning Joe team about the difference in raising teenagers now with all the technological advancements of the day. “Raising a teenager is so drastically different today given all the social media. What happens with their attention span?,” asks Mike of Dr. Jensen. Hear how she explains the teenage brain functions differently than the adult brain and that benefit on learning. On MSNBC.