According to a new study, poor sleeping habits negatively affects a college student's overall mood.

Akin Sano, the study's author, stated, We found that week-long irregular sleep schedules are significantly associated with lower self-reported morning and evening happiness, healthiness and calmness during the week, even after controlling for weekly average sleep duration.

The positive side of their research is that students who took the time to recuperate found themselves in better moods.