20+ years in a rj doesn’t exactly give one much room to say what long haul flying is like. For those that don’t take care of themselves it can put some hard miles on the body. I never see those guys in the gym. Once you learn what works for you, WB flying is what you make of it. I fly productive trips, get a bunch of sleep, and I’m in pretty good shape for a older guy. My trips involve a 12 hr duty day going out, and a 14 hour day heading home with a 3-3.5 hour break in the bunks. I don’t go bar hopping with the guys, but I’m much more healthy than those who do.