The following is a list of the references and citations with clickable links to save you time:

  1. Von Ruesten, A., Weikert, C., Fietze, I., & Boeing, H. (2012). Association of sleep duration with chronic diseases in the European Prospective Investigation into Cancer and Nutrition (EPIC)-Potsdam study. PloS one, 7(1), e30972. PMID: 22295122 – DOI:10.1371/JOURNAL.PONE.0030972
  2. Beccuti, G., & Pannain, S. (2011). Sleep and obesity. Current opinion in clinical nutrition and metabolic care, 14(4), 402─412. PMID: 21659802 – DOI: 10.1097/MCO.0B013E3283479109
  3. Nutt, D., Wilson, S., & Paterson, L. (2008). Sleep disorders as core symptoms of depression. Dialogues in clinical neuroscience, 10(3), 329─336. PMID: 18979946 – Retrieved from
  4. Shan, Z., Ma, H., Xie, M., Yan, P., Guo, Y., Bao, W., & Liu, L. (2015). Sleep duration and risk of type 2 diabetes: a meta-analysis of prospective studies. Diabetes care, 38(3), 529─537. PMID: 25715415 – DOI: 10.2337/DC14-2073
  5. Spurgeon, D. (2002). People who sleep for seven hours a night live longest. BMJ: British Medical Journal, 324(7335), 446. PMCID: 1172056 – DOI:  10.1136/BMJ.324.7335.446/E
  6. Heatley E., Harris M., Battersby M., McEvoy R., Chai-Coetzer C., & Antic N. (2013). Obstructive sleep apnoea in adults: A common chronic condition in need of a comprehensive chronic condition management approach. Sleep Medicine Reviews, 17(5), 349─355. PMID: 23434125 – DOI: 10.1016/J.SMRV.2012.09.004
  7. Ferriss, T. (2016, October 13). My Evening Routine for Optimal Relaxation and Sleep. Retrieved from

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