Ha! My father is a doctor and in his 70s. He says he is retired because he only works 60 hours a week at the hospital emergency room. According to him, 60 hours a week is being retired since it is so few hours for a doctor.
My brother is a doctor, while he works insane hours, it seems there's a LOT of downtime between jobs, where he's technically "on the clock" but reads ebooks or watches series or socializes.
I technically work 12 hours as well as a developer, but actual work might be 6 hours or less, and it's way less stressful than a doctor.
