I was just talking about this subject yesterday...how long I've been getting up and going to work each day. It's 30 years now (I'm 47 and graduated high school at 17).
When I was younger I'd beg for overtime...I needed it...house, kids, car payments. If I ended up with 55 hours I'd be thrilled. Now it's a different story. Now I'm a school teacher and I'm out by 2:15 everyday. Summers off.
But I absolutely suffered when I was young, all the way up until I was 34...6-7 days a week, ten hours a day, out in the cold, out in the hot. Didn't matter. But with my job now I get a different kind of tired - you really wouldn't understand unless you did it - it's an exhausting/stressful feeling being on display all day, never being allowed to kind of have that "off" day where maybe you're not feeling well, or you're tired and you're just not into it. If you do that while you're standing in front of 25 high school kids, they'll eat you alive. They actually like it when you're sick, they sense weakness and go in for the take down.
But man it's been a long 30 years...that's 30 years of commuting, putting myself through college, changing jobs without missing a paycheck, going to work sick, hurt, injured, tired. Waking up everyday at 5:20, making that coffee, making that lunch...running out the door, jumping in that freezing cold car and driving down those dark roads. We all do it. We should get some medals for this crap. I swear we're all part of some government or alien experiment (and they're all just laughing at us).