> Also, there's a long-term question of whether there are any processes within the body are keyed off of the heartbeat, because biological designs are often spa

> Also, there's a long-term question of whether there are any processes within the body are keyed off of the heartbeat, because biological designs are often spaghetti and take full advantage of any random interaction and make it load-bearing. I've heard it suggested that musicians keep time according to their heartbeat; I don't feel like I'm doing that when I'm playing music, but I'd be interested to see what a musician feels like after having this procedure.