I woke up early this morning and went right into one of the worst panic attacks of my life. Nausea, dizziness, heart rate going at about twice what it normally does... I found this site after looking for quick ways to lower my hart rate because I was having trouble breathing. I decided to give the cold shower treatment a try and, while I regretted it for the first five minutes or so, I am now feeling totally back to normal. I'll be sure to use this method in the future as it works so much faster than any medication I have tried.