Man oh man have you ever really thought about what happens to your heart rate in an assault? It is totally crazy. To try and get a picture think back to a time when you were driving down the road and had a close call with either a pedestrian or another car...bam it hits you like a ton of bricks and no matter what you think you can not control it or stop it it is an involuntary response.
At the Boise Self Defense Company's web site there is an article you have to read http://streetcombat.powweb.com//heartrate.html
