First off, sorry if this is inappropriate for this board. I couldn't find a "Health" sub-SE.
A few years ago, I was messing around with the concept of "psi" (an energy that supposedly exists in everybody that can be mentally manipulated). One of the exercises called for focusing on your solar plexus. I tried it over the course of a week, and found a spot that if I focused on it, a glowing, tingly feeling would "surround me" (It feels like a kind of warm feeling that extends out from my trunk to my extremities). I noticed though that while doing it, my heart rate seemed to increase, which I confirmed using a monitor.
I eventually developed a "muscle feeling" that could be "flexed" and controlled like how you flex an arm. I thought I had finally managed to manipulate psi (I now doubt that this is the actually mechanism), so I kept practicing it, and can now do it fairly easily (although it actually requires a fair amount of concentration to maintain). My record was increasing it to just under 200 bpm while in a near-silent classroom hooked up to a monitor (yes, that was dumb. I never do it to that point anymore). It's interesting because it speeds up as soon as I begin "flexing" it, and it drops immediately after "releasing it".
Does anyone have any idea of what this could be? I doubt its directly related to the heart (because I'm not consciously controlling every beat, just the ramping up/down). The only thing I can think of is it being related to my Adrenal Glands, and I'm somehow controlling the release of adrenalin into my system (it feels similar to an adrenalin rush, but not exactly like one. It dies off much faster and isn't near as strong.)
And what are people's thoughts as to the safety of this? My Dad recommended not doing it simply because "putting excess stress on the heart is bad" (but that alone can't be bad as exercise is quite stressful on your heart).
Thank you. Edit: I just tried it again for the first time in a while with a monitor. My baseline HR was 60 with a BP of 122/78 (near perfect). I measured again while focusing, and my HR was 122, with a BP of approx. 129/80 (my monitor turned off while I was writing this, so that's off of memory)