This book surprised me. I was still sold on the old "you are born with it or you're not" theory. Based on what I've been people who've recovered from accidents or severe illness so, it makes more sense. I don't think I ever would have understood it if I hadn't been watching SciShow on YouTube. I particularly recommended the episode on Epigenetics, which is where I first heard the word. I also recommend this book.
This book covers new ideas in gene/environment interaction and how genius is expressed.