Mayim Bialik, star of "The Big Bang Theory," puts her Ph.D. to work as she talks to teens about the science of growing up and getting ahead. A must-have book for all teenage girls. Growing up as a girl in today’s world is no easy task. Juggling family, friends, romantic relationships, social interests and school…sometimes it feels like you might need to be a superhero to get through it all, but really, all you need is little information. Author of "Girling Up: How to Be Strong, Smart and Spectacular ," Mayim Bialik, joins BUILD to chat with us about her book. Interview at 692 Broadway in NYC for BUILD Series.