Preface : why I wrote this book
Part 1. Youth sports: the wins and the losses : Why we should care about repetitive brain trauma in youth sports
How youth sports can provide a lifetime of benefits
Why sports culture needs a transformation
Part 2. The science: what we know about repetitive brain trauma in sports : Why kids really do hit that hard
Why the young brain is vulnerable
Why it's not all about concussions
Why head impacts in youth sports may be disrupting brain development
Why CTE is more than an NFL problem, and what it means for youth sports
Part 3. Bad arguments for maintaining the status quo in youth contact sports : Why the argument that "other sports are dangerous too" is a bad one
Why helmets and other technology won't solve the problem
Why "safer than ever" may not be safe enough
Why you don't have to hit at a young age to be a superstar
Why the benefits of sports can be gained without repetitive brain trauma
Part 4. The future of youth contact sports : How we can change contact sports to protect children's brains
What families and athletes can do to stay safe in youth sports
What you can do to improve the safety of youth sports in your community
Conclusion : how much do we have to know and how bad do the risks have to be?