参考资料:
[1] Fang, Y., Forger, D.B., Frank, E. et al. Day-to-day variability in sleep parameters and depression risk: a prospective cohort study of training physicians. npj Digit. Med, DOI: https://doi.org/10.1038/s41746-021-00400-z
[2] Irregular sleep schedules connected to bad moods and depression, study shows. Retrieved 2021-02-20, from https://medicalxpress.com/news/2021-02-irregular-bad-moods-depression.html