That's a good book. I actually came to understand all this better through a different book that I bought to understand my anxiety: Rewire Your Anxious Brain - https://www.amazon.com/Rewire-Your-Anxious-Brain-Neuroscienc...

Curious about that book - did it help you? Silly questions, but serious: How much did it help? What, specifically, did you get from it? Asking for a relative who has serious anxiety issues (no, really, it's not me... I have depression, and Burns' "Feeling Good" helped me substantially, specifically by identifying brain-spirals I get into, which lead to depression, and once known can be avoided). I'd love to recommend something good for them. Thanks!