I am surprised some of the other reviewers did not like this book. As a father of two teen daughters, I think it is a helpful perspective. OK, the cave man analogy goes a bit far, but hormones do influence our thoughts and behavior and teen males are driven (somewhat crazy) with massive doses of testosterone. I clearly remember my obsessions with aggression and sex when I was a teen. The author has plenty of experience with teens of both sexes, and his opinions should be considered by teen girls of the present era. They should be encouraged to consider multiple perspectives, IMHO.