My American boyfriend (Physics PhD + postdoc) has been working in Europe for 3 years, in research. The country where we live has a great work/life balance and he works on average 40 hour weeks. He's wondering if he were to move to the US what kind of hours he would be expected to work. Is everyone pretty much pushed to work long hours all the time? He is very professional and dedicated and understands the need for over time on certain projects, but he isn't too keen if that is the rule rather than the exception. Thanks for your input!