I just started working at a midsize university this past June. What I see with my student workers (many who close with me at 2 am) is this:
1)terrible sleep habits (sleep HAS to be a priority according to every doctor I've ever seen, and cannot be "made up", you need a consistent amount every night)
2)irregular eating habits (many of my students maybe eat one real "meal" a day, and roll my eyes at me when I say they need to eat better and more regularly)
3)inability to say "NO"(whether it's to friends wanting to do something, jobs that want even more from them, or classmates who need help, etc)
4)shortsightedness in that they don't realize that immediate decisions have long term consequences (yes, they can push themselves healthwise now, but it can develop into a chronic, possibly lifelong illness, who wants that?)
I'm not saying any of this applies to OP's daughter, but it sure applies to 90%+ of the college students I work with.
(Our library only closes from 2 am-7 am, and there are always notes in the suggestion box asking that we be open 24/7. I literally tell them at 2 am, "Go home and get some sleep!".)
Terri