Lorelei Mucci
Primary Faculty

Lorelei Mucci

Professor of Epidemiology




My major area of research and teaching is cancer epidemiology. I am the Director of the Cancer Epidemiology and Cancer Prevention Program (Area of Interest) within the Department of Epidemiology here at the Harvard T.H. Chan School of Public Health (HSPH). In addition, I am Leader of the Cancer Epidemiology Program at the Dana-Farber/Harvard Cancer Center.

After receiving my doctoral degree in epidemiology at the Harvard T.H. Chan School of Public Health (formerly the Harvard School of Public Health), I trained as a post-doctoral fellow in cancer epidemiology at the Karolinska Institutet, Sweden. At the Karolinska, I gained expertise in using nationwide health registries to examine cancer etiology and formed a long-term partnership with epidemiology colleagues in the Nordic countries. For the past 9 years, my primary faculty appointment has been at the Harvard Chan School, where my research uses integrative molecular epidemiology approaches within cohorts in the United States and globally to investigate research questions focused on cancer etiology, mortality, and survivorship. I serve as co-Principal Investigator for the Health Professionals Follow-up Study (https://sites.sph.harvard.edu/hpfs/) as well as IRONMAN (see below). Below is a summary of some major areas of interest.


Prostate cancer risk stratification improvement across multiple ancestries with new polygenic hazard score.

Huynh-Le MP, Karunamuni R, Fan CC, Asona L, Thompson WK, Martinez ME, Eeles RA, Kote-Jarai Z, Muir KR, Lophatananon A, Schleutker J, Pashayan N, Batra J, Grönberg H, Neal DE, Nordestgaard BG, Tangen CM, MacInnis RJ, Wolk A, Albanes D, Haiman CA, Travis RC, Blot WJ, Stanford JL, Mucci LA, West CML, Nielsen SF, Kibel AS, Cussenot O, Berndt SI, Koutros S, Sørensen KD, Cybulski C, Grindedal EM, Menegaux F, Park JY, Ingles SA, Maier C, Hamilton RJ, Rosenstein BS, Lu YJ, Watya S, Vega A, Kogevinas M, Wiklund F, Penney KL, Huff CD, Teixeira MR, Multigner L, Leach RJ, Brenner H, John EM, Kaneva R, Logothetis CJ, Neuhausen SL, De Ruyck K, Ost P, Razack A, Newcomb LF, Fowke JH, Gamulin M, Abraham A, Claessens F, Castelao JE, Townsend PA, Crawford DC, Petrovics G, van Schaik RHN, Parent MÉ, Hu JJ, Zheng W, Mills IG, Andreassen OA, Dale AM, Seibert TM.

Prostate Cancer Prostatic Dis. 2022 Feb 12. PMID: 35152271


Why more sex may lower prostate cancer risk

Frequent ejaculation has been linked with decreased prostate cancer risk. One reason may be that frequent ejaculation may help clear potentially cancer-causing substances from the prostate, according to Harvard Chan School's Lorelei Mucci.

Diet may influence risk of aggressive prostate cancer

Dietary patterns that are associated with inflammation and insulinemia—a condition marked by high levels of insulin in the blood—may put men at an increased risk for aggressive forms of prostate cancer, according to new research led by Harvard…