I am interested in the epidemiology of sleep and sleep disorders. The focus of my current research is to identify causes, risk factors and mechanisms for sleep health and sleep disorders, as well as the long-term impact of disturbed sleep on health (particularly cardiometabolic disease and cancer). I am also enthusiastic about applying the state-of-the-art, multi-omics approach to understand the biologic mechanisms underlying the observed associations with sleep traits.  Another relevant area of research is the interface and potential interactions of sleep with behavioral and psychosocial factors, which expand my sleep research in a broader context.  

Academic Appointment

  • Assistant Professor of Medicine: Harvard Medical School, 2020-present
  • Instructor in Medicine: Harvard Medical School, 2016-2019
  • Associate Epidemiologist: Channing Division of Network Medicine, Brigham and Women’s Hospital, 2016-present


  • Postdoctoral training, Brigham and Women’s Hospital, 2015-2016
  • ScD in Epidemiology, Harvard T.H. Chan School of Public Health, 2015
  • MSc in Epidemiology, University of California Los Angeles, 2011
  • BS in Biological Science, Peking University, 2009


  • 2018 Articles of the Year (for the article entitled ‘Type of Menopause, Age at Menopause, and Risk of Developing Obstructive Sleep Apnea in Postmenopausal Women’), American Journal of Epidemiology and Society for Epidemiologic Research, 2019
  • Trudy Bush Fellowship for Cardiovascular Disease Research in Women's Health, Amercian Heart Association, 2019
  • Building Interdisciplinary Research Careers in Women’s Health Program (BIRCWH) Associate Scholar, 2019
  • EPI Council Early Career Travel Grant, American Heart Association, 2018
  • Finalist, Elizabeth Barrett-Connor Research Award for Young Investigators, American Heart Association, 2017
  • The Harvey V. Fineberg Fellowship in cancer prevention, Harvard T.H. Chan School of Public Health, 2014
  • The David H. Peipers Fellowship, Harvard T.H. Chan School of Public Health, 2011-2013
  • The Epidemiology Department Tuition Grant, Harvard T.H. Chan School of Public Health, 2011-2013


  • R01HL155395, NIH/NHLBI, 2021-2026
    • Project title: The role of irregular sleep schedules as a ubiquitous marker of chronic circadian disruption in cardiometabolic disease development
    • Role: PI
    • Total funding: $3,533,793
    • Project description 
  • R21HL145421, NIH/NHLBI, 2019-2021
    • Project title: Association of habitual sleep duration with plasma metabolomics
    • Role: Subcontract PI
    • Total funding: $137,534
    • Project description 
  • K01HL143034 (Mentored Research Scientist Development Award), NIH/NHLBI, 2018-2023
    • Project title: Elucidating inflammatory and metabolic pathways in obstructive sleep apnea development
    • Role: PI
    • Total funding: $884,864
    • Project description
  • Women’s Health Interdisciplinary Stress Program of Research (WHISPR) Pilot Research Award, Brigham and Women's Hospital, 2018 
    • Project title: Association of childhood abuse with plasma metabolomics in women
    • Role: PI
    • Total funding: $24,590
  • American Heart Association Postdoctoral Fellowship (Founders Affiliate), 2016-2017 
    • Project title: Elucidating the role of sleep on cardiovascular risk: biomarkers of metabolism and stress
    • Role: PI
    • Total funding: $87,700