For a semi healthy adult average height and weight.....
I'm not going to say I'm at Kingfish heart level of 45 bpm and taking 600 mg of caffeine.
I take about 500mg per day and that might be too much. Weight at about 183 lb.
My resting heart rate has always been around 60-70 bpm with or without caffeine....
without caffeine you just wanna eat and sleep sometimes when you totally go cold turkey.
