Here's a great article about having balance at work. Remember your employers are people who will understand doing things the right way, and also many of them are great employers outside of the home. Don't kill yourself by working in an unhealthy way.
Back in the old days there were working hours. You went to work and then around five p.m., you packed up your stuff and went home. If there were an emergency you might stay until five-thirty.Those days are gone! White-collar work, sometimes called Knowledge Work, is never done. Your immediate To Do list might have twenty items on it, but right behind the immediate To Do list is a supplemental To Do list with another forty action items on it and after that list is done, there's a third one waiting.The old rules have changed completely. My teenagers work at retail stores and restaurants. Their workday ends when they clock out but more importantly, they don't take their work home with them. The rest of us do.
via Five Things You Owe Your Employer – And Five You Don't | LinkedIn.