Yeah, you could quite easily do that, but since it's as uncomfortable as it is, I don't plan on passing out or bursting a blood vessel, I just happened to have figured out how to do it, lol. (I learned quite some time ago, actually). I can also control my hear rate a little bit. If I calm down enough, I can either slow it down, or speed it up a bit, but it requires a lot of patience and concentration, and doesn't always do much.