Well, it's a long story, but basically I really like the idea of monitoring how fast the heart can go when you're horny. Sadly I had a panic attack moment when I started getting too much in my head over my heartbeat while listening to it through the recording of my stethoscope. It was pretty bananas, so even though I really like the idea, I couldn't really keep doing it. So my solution was to monitor my audio differently, I built a heart monitor on Arduino and counted the beats manually with a tally counter to give the illusion of a heartbeat. I hope it's good enough. Enjoy!