Sara Hägg

Sara Hägg

Senior Lecturer | Docent
Telephone: +46852482236
Visiting address: ,
Postal address: C8 Medicinsk epidemiologi och biostatistik, C8 MEB II Hägg, 171 77 Stockholm

About me

  • Associate Professor (Docent) in molecular epidemiology at the Department of Medical Epidemiology and Biostatistics, Karolinska Institutet.


    • PhD in Computational Biology, Linköping University, 2009
    • MSc in Molecular Biology, Stockholm University, 2003
    • BSc in Computer Science, Stockholm University, 2003


    • Genetic epidemiology, Medical epidemiology and biostatistics (MEB), KI, 2011-2014
    • Molecular epidemiology, Department of medical sciences, Uppsala University, 2013-2014


    • Stanford University School of Medicine, 2016


  • My main research interest is human biological aging

  • how to measure it in human cohorts, understanding causal pathways in aging and identify
    geroprotectors to repurpose for age-related diseases. Markers of human biological aging can be telomere length, epigenetic clocks, functional aging,
    frailty index, etc. I study such markers in longitudinal data from several twin studies of aging (SATSA, GENDER, HARMONY, OCTO-Twin, TwinGene)
    within the Swedish Twin Registry and also using UK biobank data. Methods that I use include longitudinal modelling, causal analyses using drug target Mendelian Randomization, and large-scale genome-wide approaches. For a more detailed description of my current research please visit my project page A geroscientifc approach to study human biological aging.


All other publications



  • Senior Lecturer, Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, 2023-

Degrees and Education

  • Docent, Karolinska Institutet, 2015


  • Karolina Gustavsson, Muti-omics of aging and risk for dementia, 2024
  • Bowen Tang

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