Professor. It's a term used to cover a wide swath of job in the US, from people who strictly teach undergraduates to soft money researchers. The spectrum of people, jobs, situations and career options makes the title a grab-bag of many things. At each end of the spectrum you have jobs that are nearly, if not entirely, non-overlapping in their responsibilities and requirements.
Some professors find teaching to be the hardest part of their job. Others are mired in administrative bullshit or frustrated by the constant need to hump the leg of one's particular funding agency. But there's one stress aspect all of these jobs share:
Work / life balance.
It doesn't matter if you're single or married with 12 kids, I don't know a single professor under 50 who doesn't routinely struggle with meeting the demands of their work while maintaining some semblance of normal (whatever that is) at home. I've posted before about the fallacy of balance (spoiler: balance means doing at least one thing poorly all the time, just don't make it the same thing all the time) and it doesn't really exist. But there's lots of jobs that require a lot of hours, right? Yes, but one of the major benefits of academia is also what makes balancing it so tricky - there's no boss.
Some jobs have hourly work week expectations of their more junior people that are either institutional or explicit. Some jobs require a certain amount of travel. As a professor, you make all your own choices on how to spend your time. As such, I almost always hear people comparing notes about how each other spends their time.
"How much do you travel?"
"How many hours a week do you spend in your office?"
"How much do you work at home?"
"How many hours of sleep do you get?"
These are all questions I've asked or been asked in the last few months. Everyone is trying to figure out what the "right" balance is when the reality is that it is completely amoeboid. No two people's situations are the same, nor is any one person's situation the same from one month to the next. Workload, health, kids, parents, phase of the moon, mood of your administration, how needy your cat is, your town's climate, etc., etc., etc., all play in to what you can give and to whom.
And it's up to you to gauge how to spend your time, sometimes months in advance. The challenges of these decisions are really the one stressor that unites all academics, across the board.