My two young guests ate and drank enough to put them in a coma for a week, but they get up early in the morning with no hangover symptoms. All I do is drink a few beers and a shot and I'm struggling to get up at noon. I hate young people haha

Its not age, it's practice;). Seriously though for the sake of comparing, I used to get hangovers, not much anymore. If I have a hangover, I REALLY misbehaved! For the record I'm not old or young, just approaching 40, which is right in the middle.....yeah. That's what I tell myself.