Can 21st-century molecular biology answer age-old questions about the human experience? Can studying proteins and DNA help us understand how we make our choices in sex and love or how we communicate? "Sex, Love and DNA" explains how proteins and DNA affect our lives through stories of children whose DNA enables them to perform unusual feats of strength, and people who can't speak simply because they lack certain proteins. Written in language that anyone can understand, "Sex, Love and DNA" explains how the science of molecular biology is revolutionizing our understanding of what it means to be human.