Dr. Shanker's book is, as you might infer from the title, focused on children. But the learnings from this book are equally applicable to adults.
In the introduction to the book we read, "Self-Reg is a five-step method for (1)
recognizing when a child is overstressed; (2) identifying and then (3) reducing his stressors; (4) helping him become aware of when he needs to do this for himself; and (5) helping him to develop self-regulating strategies."
We could apply the same five steps to ourselves. There is a wealth of wisdom for all ages in this book!