I think you'd do well to print the book and read it. It might be one of the best, uncomplicating, almost earth-shattering revealings I've come across in about ten years of focussed, health-directed reading. (Its knowledge underpins all the sound ideas that've been shared on this forum.)It ought to clarify what is actually going on with the friend's chin, and beautifully explain why looking to solve individual symptoms is fundamentally flawed and fruitless. The body is one body, and this little book is like a light-footed bridge across a chasm of bewilderment, endless searching, and fathomless falsehoods.