Am I really unique? Why do I look like my grandma but not my mum? Is my brain just a wet computer? How long will I live? For answers to these questions and many, many more, this ultimate guide will set you straight. Grounded in genetics, identity and brain science, it's all about you and what makes you who you are. Find out the facts, tackle the quizzes and try out the home experiments as you embark on a fascinating journey of self-discovery!