"Health" here is a soft term to mean "won't kill you quickly or effect your tissue for a long time". Talking about the effect of healthy hearts obscures the ef

"Health" here is a soft term to mean "won't kill you quickly or effect your tissue for a long time". Talking about the effect of healthy hearts obscures the effects. I am in stage 2 heart failure (as I have been for a long time). I cannot drink coffee, as it aggravates the tissue. The study can say whatever it wants about coffee (without caffeine), but the effect of 100mg of caffeine on the heart is detrimental. That dread is the same as many heart-attack-precursor feelings (also documented in EMT training), that racing heart rate is aggravation of the left atrium, that shaking is the fight-or-flight adrenaline (which is what makes us feel good). This looks like a proletariat study. "Sure you can drink as much coffee as you want, as long as you feel good about producing. It's fine until it isn't."