In the labs I've been at, they've been middle-sized and publish in high impact journals, the students are there often 7 days a week, often 50-60 hours a week, but not always. But they go out ALL the time they are not in the lab. They have much more fun than
undergrads at my university. They are stressed too, in a different way than I am, but they go out a lot. Work hard and play hard. That's a ...