I have genetically high resting heart rate, lowest it had gotten down to is 68 this is with metropolol at 150mg twice a day. It would go up to 75-90 on blasts depends on my diet.
However, I never let it past 90 for a couple of days, if it gets past 90 I back down on my stims like coffee and clean up my diet, it goes down to 70’s again.
So if you’re like me who has genetic pre disposition to high heart beat, I limit my stims and compounds like clen, yohimbe even the glps would uptick it by 10-20 pts. I haven’t found a way around it yet.