As we wrap up the year, we’re grateful for our team’s dedication, heart, and resilience. Thank you for all you do. Wishing everyone a joyful holiday season, well-deserved rest, and a bright year ahead! #happyholidays

New study: Small benefits and risks of COVID-19 vaccines in children in Madrid. Hospitalization risk very low in unvaccinated, lower in vaccinated. 6-11 years old: no myocarditis cases 12-17 years old: myocarditis risk very low in vaccinated, lower in unvaccinated journals.lww.com/pidj/fulltex...

Scenes from the 177th Cutter Lecture on Preventive Medicine on "The State of Biomedical Science in the US" with Katrina Armstrong, December 18, 2025. Faculty, researchers, students and staff enjoyed the insightful lecture and holiday party afterwards. ➡️View lecture: www.youtube.com/watch?v=9X0l...

New publication @nejm.org! "Untangling the Risks of Antidepressants in Pregnancy" The letter examines controversy surrounding SSRIs and highlights confounding by maternal psychiatric as a key challenge confronted by observational studies. Read the letter: www.nejm.org/doi/full/10....

Congratulations to our Master's student Kevin H. Nguyen! Nguyen is the recipient of a World Health Organization (WHO) Implementation Research Incentive Grant for young researchers for a project to train healthcare workers in integrated care for chronic conditions and mental health in Kathmandu.

From our department to yours, we extend our warmest wishes to everyone for a safe and enjoyable holiday break!

Join us online on Wednesday, December 3 at 1:00pm ET for the Department's seminar series with Dr. Tyler VanderWeele speaking on "The Global Flourishing Study". ➡️ Go to event page: hsph.harvard.edu/epidemiology...

Today marks the conclusion of our November spotlight on the CAUSALab! To stay informed about the latest events and news, be sure to follow the group @causalab.bsky.social and visit their website: hsph.harvard.edu/research/cau...

Take a look at CAUSALab’s latest event: the 20th Kolokotrones Symposium 🎉

As part of our monthly series spotlighting @causalab.bsky.social, we’re excited to introduce the lab’s team of 45+ members—including staff, faculty, researchers, postdoctoral fellows and students—who help to advance #causalInference research through their various roles. Meet the team below ⬇️

Published November @jamaoncology.com, 'Ultraprocessed Food Consumption & Risk of Early-Onset Colorectal Cancer Precursors among Women' by Chen Wang, Mengxi Du, Neha Khandpur, Qi Sun, Shuji Ogino, Edward Giovannucci, Mingyang Song, Andrew Chan and co-authors. ➡️ Read: jamanetwork.com/journals/jam...

Attention bakers! Our department is full of talented chefs, and they proved it once again at last week’s annual fall bake-off. Thank you to everyone who baked, tasted and voted! Congratulations to all of our winners, pictured below along with all of the delicious entries 🍰 🍪

⭐ New Publication Alert ⭐ Published October 30, 2025 in @jamaoncology.com, 'Consistent Adherence to Physical Activity Guidelines and Digestive System Cancer Risk and Mortality' by Yiwen Zhang, Dong Hoon Lee, Edward Giovannucci and co-authors. ➡️ Read it here: jamanetwork.com/journals/jam...

⭐New Publication Alert⭐ Published October 15, 2025 in @commsmed.nature.com 'Associations of maternal and paternal characteristics with cardiac malformations using real-world data and machine learning.' ➡️ Read paper: www.nature.com/articles/s43... #cardiometabolichealth #machinelearning

Join us online on Wednesday, November 12 at 1:00pm ET for the Department's seminar series with Alpa Patel speaking on "The Science Behind the Cancer Prevention Studies" ➡️ Go to event page to register: hsph.harvard.edu/epidemiology...

This month, we are featuring @causalab.bsky.social as the final installment in our '25 series spotlighting our research groups. Launched in '21, by @miguelhernan.org, CAUSALab uses data to investigate what works in medicine, public health & policy. Follow along to learn more about #causalinference

Join us on Monday, December 8th at 4:00pm ET for the 177th Cutter Lecture on Preventive Medicine "The State of Biomedical Science in the US — How Did We Get Here and What Can We Do" with Katrina Armstrong ➡️ Go to event page to register: hsph.harvard.edu/epidemiology...

🎃 Happy Halloween from our team! 🎃 To celebrate the season, our department hosted its fourth annual Halloween Costume Contest featuring our staff members’ pawsitively adorable pets. Meet all of our furry friends in their spook-tacular costumes below ⬇️

That’s a wrap on our series with the Population Mental Health Lab! Over the past month, we’ve showcased their impactful #mentalhealth work. As we close, we’re excited to celebrate the dedicated team members pictured below. Questions or looking to stay connected? ➡️ [email protected]

⭐New Publication Alert⭐ Published in the October 2025 issue of 'Alzheimer's & Dementia' titled "Compression of cognitive decline and cognitive resilience in extreme longevity." ➡️ Read here: alz-journals.onlinelibrary.wiley.com/doi/10.1002/... ➡️ Read HSPH article: hsph.harvard.edu/news/less-co...

Join us online on Wednesday, November 5 at 1:00pm ET for the Department's seminar series with Peter Kraft speaking on "Breast Cancer Genome-Wide Association Studies: The End of the Beginning?" ➡️ Go to event page to register: hsph.harvard.edu/epidemiology...

Our department takes pride in supporting our local community. Since 2018, we have volunteered with Community Servings, a nonprofit that provides medically tailored meals to individuals living with serious illnesses. ➡️ To learn more about Community Servings or to volunteer visit: www.servings.org

Week 4 of our PMH Lab series highlights the Broad Trauma Initiative (BTI), a @hsph.harvard.edu & @broadinstitute.org effort uniting science, care, and community to study trauma’s health impact and drive prevention. 👉 Learn more about BTI on their website: www.broadinstitute.org/biology-trau...

Join us online on Wednesday, October 29 at 1:00pm ET for the Department's seminar series with Kevin Kensler speaking on "Prostate Cancer Screening: What’s Gone Wrong? What Can We Get Right?" ➡️ Go to event page to register: hsph.harvard.edu/epidemiology...

You're invited! ✉️ 20th Kolokotrones Symposium: “Acetaminophen During Pregnancy and Autism: What Does Causal Inference Take?" Details in comments. In-person limited to Harvard ID holders due to space restrictions. Online attendance free & public. Register: www.eventbrite.com/e/acetaminop...

We’re excited to share research that advances our understanding of the genetics of PTSD. Researchers from the Population Mental Health Lab and collaborators identified 95 genome-wide significant loci associated with the genetics of PTSD. Read the article: pubmed.ncbi.nlm.nih.gov/38637617/

Join us online on Wednesday, October 22 at 1:00pm ET for the Department's "Works-In-Progress" seminar with Dr. Jing Li speaking on "Deep Learning–Based Estimator for the Non-Iterative Conditional Expectation (NICE) g-formula" ➡️ Go to event page to register: hsph.harvard.edu/epidemiology...

The cancer epidemiology team volunteered at the @americancancersoc.bsky.social Hope Lodge, cooking dinner for guests. Hope Lodge provides free lodging for cancer patients and their caregivers when they travel for treatment or appointments. A lovely evening spent supporting an important cause!

October’s featured group, the Population Mental Health Lab, recently published a study showing that experiences of stalking or restraining orders are linked to a higher risk of heart disease in women. Check out the article: www.ahajournals.org/doi/10.1161/...

Finishing our postdoc spotlight series this week from the Population Mental Health Lab, we have Dr. Yiwen Zhu! Zhu is exploring how biological pathways mediate the relationships between trauma/PTSD & elevated risk of chronic health conditions, such as cardiometabolic diseases & cognitive decline.

Up next, for a postdoc spotlight, is Andrew Ratanatharathorn! Dr. Ratanatharathorn's research integrates #genomic, #epigenomic, and #environmental data to understand how genetic variation and trauma exposure contributes to mental health risks & physical health consequences of PTSD.

Join us online on Wednesday, October 15 at 1:00pm ET for the Department's seminar series with Uwe Siebert speaking on "At the Interface of Epidemiology and Health Decision Science: Jointly Shaping Cancer Screening Strategies"➡️Go to event page to register: hsph.harvard.edu/epidemiology...

This week, in continuation of our series on the Population Mental Health Lab, we are spotlighting 3 postdocs! Up first we have Dr. Daniel Bustamante who focuses on neuropsychiatric genetics research including phenotype measurement and genomic analysis of #schizophrenia, #bipolardisorder and #PTSD.

Congratulations to Anqi Wang who is the recipient of a new K99/R00 award "The Role of Loss of Y Chromosome Across the Prostate Cancer Continuum," by the National Cancer Institute. Faculty members Lorelei Mucci will serve as mentor and Konrad Stopsack will serve as advisor on this award.

As part of our monthly series, we're spotlighting the Population Mental Health Lab this October 🎉 Founded in 2024 & led by Karestan Koenen, the lab focuses on the principle that #mentalhealth is the basis of all health. Follow along each week to learn more about this group and their research!

Join us online on Wednesday, October 8th at 1:00pm ET for the Department's seminar series with Stefania Papatheodorou speaking on "From Signal to Noise: Addressing Multiplicity Using the Exposome-Neurodevelopment Example" ➡️ Go to event page to register: hsph.harvard.edu/epidemiology...

⭐New Publication Alert ⭐ Published Sept 16th in 'Molecular Cancer Research.' ➡️ Find here: aacrjournals.org/mcr/article-...

Our team was proud to take part in the Harvard Chan Community Day of Service! Department members made fleece blankets for youth experiencing homelessness, distributed by Project Linus. Thank you to everyone who volunteered! @hsph.harvard.edu #Boston #CommunityImpact

For #ProstateCancerAwarenessMonth, we’re highlighting work from @hsph.harvard.edu researchers who quantified long-term performance of prostate tumors Gleason score for lethal cancer across 25 years, showcasing long-term clinical relevance. @amjepi.bsky.social 👉 pubmed.ncbi.nlm.nih.gov/40302103/

Did you know it's Prostate Cancer Awareness Month? In recognition we want to highlight our Cancer Epi Team's impactful work! Prof Lorelei Mucci co-leads the IRONMAN registry, an international registry of 4,800 patients living with advanced #prostatecancer to address critical unmet needs.

⭐New Publication⭐ Published in the October 2025 issue of Clinical Nutrition "Serum Galectin-9 and Decorin in relation to brain aging and the green-Mediterranean diet: A secondary analysis of the DIRECT PLUS randomized trial." ➡️ Read here: www.sciencedirect.com/science/arti...

That’s a wrap on #NationalPostdocAppreciationWeek Thank you to the faculty, staff, researchers and our postdocs who joined yesterday’s celebration! Although the week has ended, our appreciation for postdocs continues as we celebrate their contributions to our research community year-round. #NPAW25

⭐New Publication⭐ Published September 2025 in 'Epidemiology' paper titled "Estimating the Effects of Lifestyle Intervention on Mortality Among Cancer Survivors: A Methodological Framework." ➡️ Read here: journals.lww.com/epidem/fullt... #cancer #lifestyle #Harvard #targettrial #exercise #diet

Celebrating our postdocs is one of our favorite traditions! For #NPAW25, we surveyed our postdocs to choose their favorites from a Harvard/Boston-themed "this or that". The picks with the most votes are highlighted. Scroll down to see if you agree with what they picked 🤝

In honor of #NationalPostdocAppreciationWeek, we celebrate our 35 amazing Postdoctoral Research Fellows 👏 Thank you for your dedication, impact and continued contributions to our field. Join us in recognizing and celebrating our postdocs today! #NPAW25

The National Postdoctoral Association is celebrating its 16th Annual National Postdoc Appreciation Week! Watch their kickoff event now available on YouTube: www.youtube.com/watch?v=Cci_... Explore global postdoc events this week on their website: www.nationalpostdoc.org/page/2025NPAW

Happy National Postdoc Appreciation Week 🎉 We're incredibly grateful for the dedication and contributions of our postdocs, and we're thrilled to celebrate them all week long! Share your celebrations with us by tagging your #NPAW25 posts!

Join us online on Wednesday, September 17th at 1:00pm EST for the Department's seminar series with Shuji Ogino speaking on "Why Are Pathobiological Analyses and Insights Valuable in Epidemiology? A Primer for Epidemiologists" ➡️ Go to the event page to register: hsph.harvard.edu/epidemiology...

⭐ New Publication Alert⭐ Published August 25 in @natmed.nature.com 'Interplay of genetic predisposition, plasma metabolome and Mediterranean diet in dementia risk and cognitive function.' ➡️ Read here: www.nature.com/articles/s41...

When using observational data for #causalinference, the choice isn’t between emulating or not emulating a #TargetTrial, but between reporting or not reporting the target trial that we are emulating. For those who prefer to be explicit about what they do, we have developed the TARGET Statement 👇