I’m rightfully dubious of studies like this. Too many variables. They stated what they controlled for, but it wasn’t all that much, and doesn’t have any clue at all mechanism. For all we know it could be that people who drink coffee are less stressed and it’s stress that ages you. Or people who drink coffee work outside less. Or own more frogs. I dunno.

Just annoyed that studies like this get so much attention compared to studies that provide more value.