Headshot photo of Steven A. Shea, Ph.D.

Steven A. Shea, Ph.D.

  • Professor, Oregon Institute of Occupational Health Sciences
  • Professor, OHSU-PSU School of Public Health
  • Director, Oregon Institute of Occupational Health Sciences


The goal of Dr. Shea’s research is to understand the biological basis behind changes in disease severity across the day and night, and to understand the physiological and adverse health effects of shift work. For instance, Dr. Shea is determining whether cardiovascular changes across the day and night are caused by the body clock (the endogenous circadian pacemaker) or attributable to behaviors that occur on a regular daily basis, including the sleep/wake cycle. Understanding the biological basis of these physiological and pathophysiological changes across the day and night may provide an insight into the underlying cause of the disease and could lead to better therapy (e.g. appropriately timed medication to target specific phases of the body clock or to coincide with specific behaviors that cause vulnerability, such as exercise), and countermeasures aimed at reducing the adverse health effects of shift work.

Education and training

    • B.Sc., 1982, Loughborough University
    • Ph.D., 1989, University of London
  • Certifications

    • Certificate of Completion, Leadership Program, Brigham & Women’s Hospital, Harvard Business School, Boston, MA, 2010

Memberships and associations:

  • Sleep Research Society
  • American Academy of Sleep Medicine


Selected publications

  • Sianoja M, Crain TL, Hammer LB, Bodner T, Brockwood KJ, LoPresti M, Shea SA. The relationship between leadership support and employee sleep. J Occup Health Psychol. 2019 Dec 2. doi: 10.1037/ocp0000173. [Epub ahead of print]
  • Williams CN, Hartman ME, McEvoy CT, Hall TA, Lim MM, Shea SA, Luther M, Guilliams KP, Guerriero RM, Bosworth CC, Piantino JA. Sleep-Wake Disturbances After Acquired Brain Injury in Children Surviving Critical Care. Pediatr Neurol. 2019 Aug 26. pii: S0887-8994(19)30597-1. doi: 10.1016/j.pediatrneurol.2019.08.010. [Epub ahead of print]
  • Qian J, Scheer FAJL, Hu K, Shea SA. The circadian system modulates the rate of recovery of systolic blood pressure after exercise in humans. Sleep. 2019 Oct 16. pii: zsz253. doi: 10.1093/sleep/zsz253. [Epub ahead of print]
  • Thosar SS, Berman AM, Herzig MX, McHill AW, Bowles NP, Swanson CM, Clemons NA, Butler MP, Clemons AA, Emens JS, Shea SA. Circadian Rhythm of Vascular Function in Midlife Adults. Arterioscler Thromb Vasc Biol. 2019 Jun;39(6):1203-1211. doi: 10.1161/ATVBAHA.119.312682.
  • Scheer FAJL, Chellappa SL, Hu K, Shea SA. Impact of mental stress, the circadian system and their interaction on human cardiovascular function. Psychoneuroendocrinology. 2019 May;103:125-129. doi: 10.1016/j.psyneuen.2019.01.016. Epub 2019 Jan 16.
  • Thosar SS, Rueda JF, Berman AM, Lasarev MR, Herzig MX, Clemons NA, Roberts SA, Bowles NP, Emens JS, Ellison DH, Shea SA. Separate and interacting effects of the endogenous circadian system and behaviors on plasma aldosterone in humans. Am J Physiol Regul Integr Comp Physiol. 2019 Feb 1;316(2):R157-R164. doi: 10.1152/ajpregu.00314.2018. Epub 2018 Dec 6.
  • Buxton OM, Shea SA. Sleep & work, work & sleep. Sleep Health. 2018 Dec;4(6):497-498. doi: 10.1016/j.sleh.2018.10.007. Epub 2018 Oct 21.
  • Butler MP, Emch JT, Rueschman M, Sands SA, Shea SA, Wellman A, Redline S. Apnea-Hypopnea Event Duration Predicts Mortality in Men and Women in the Sleep Heart Health Study. Am J Respir Crit Care Med. 2019 Apr 1;199(7):903-912. doi: 10.1164/rccm.201804-0758OC.
  • Williams CN, Lim MM, Shea SA. Sleep disturbance after pediatric traumatic brain injury: critical knowledge gaps remain for the critically injured. Nat Sci Sleep. 2018 Aug 8;10:225-228. doi: 10.2147/NSS.S174608. eCollection 2018.
  • Lam DJ, Shea SA, Weaver EM, Mitchell RB. Predictors of Obtaining Polysomnography Among Otolaryngologists Prior to Adenotonsillectomy for Childhood Sleep-Disordered Breathing. J Clin Sleep Med. 2018 Aug 15;14(8):1361-1367. doi: 10.5664/jcsm.7274.


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