Change can be hard, and never moreso than when your body begins to biologically mature. For years we’ve been programmed to believe that once we hit puberty, we become a separate species. The hormones released during puberty, we’ve been taught, will change us into disagreeable, vulnerable, crisis-laden teenagers. Thankfully, new research finds that this stage is no more unusual than. See how much you know about what’s true and what’s not concerning this time as you change from a child to an adult.