What makes us who we are? Why is it that you might be a jalapeno-loving thrill seeker, while every other member of your family avoids risk and spicy foods? Our genes lay the foundation for our uniqueness, but they don't tell the whole story. Neuroscientist David Linden explores the origins and intricacies of these questions in his new book Unique: The New Science of Human Individuality. Available at davidlinden.org/books/unique/buy-the-book.html