I am in awe of Scott Stossel's book on anxiety and find his research, personal narrative and insight brilliant. I too have experienced my share of anxiety and so his writing has been revelatory for me. I don't typically seek anxiety producing situations, but one black hole for me can be a library book that is overdue. Every minute that it sits in my house past it's due date I feel an odd pressure until a larger worry surfaces due to my inertia. (Along with racking up fines- which is its own kind of wanton excess at .25 per day- but I digress.) Sometimes a purchase is the way to go in the end.