The importance of collaborating in work/life balance.
When I first started graduate school three years ago, I wanted to be as productive as a human being could be. By working non-stop, 7 days a week, 12 hours a day, for the first three months, I ended up not achieving much more than my colleagues were by working 8 hours a day, 5 days a week. I felt like Superman for a while, I could take an endless load of work as I was (still am) passionate about my research topic.
I realized how unhealthy that was when one day, at my parent's place, I could not even enjoy a glass of wine and listen to what my family was talking about without thinking about my experiments instead. It was hard to admit, but I was close to a «passionate» burn-out.