Thanks Myself - I try to do that as well, but even though I can get my heartrate down, it really doesn't do much to stop my mind from racing. I really saw this work for me when scuba diving - I was afraid that I'd panic, but since the whole principle is slow and steady breathing (which is measurable since your air tank is limited in capacity), I've managed not to panic and I've done 14 dives so far, including a deep dive. However, I haven't come anywhere close to reaching the same level of anxiety in scuba diving as I have with some of the limbs I've had to go out on for my career lately. UGH.