Harvard T.H. Chan School of Public Health
@hsph.harvard.edu
Health, dignity, and justice for every human. This is the official account for #HarvardChan: hsph.harvard.edu
“It felt wonderful to help our School work with communities and other universities to bring science to the public and science to policy through our scholarship, research, and education. This is a great example of public health in action,” said Kari Nadeau, chair of @harvardenvhealth.bsky.social.
On one-year anniversary of LA wildfires, researchers assess health impacts, future prevention efforts | Harvard T.H. Chan School of Public Health
A year after the devastating Los Angeles-area wildfires, Harvard Chan researchers who have been assessing the disaster’s health impacts are taking stock of what they’ve learned, and of the work that l...
hsph.harvard.edu
February 9, 2026 at 9:05 PM
“It felt wonderful to help our School work with communities and other universities to bring science to the public and science to policy through our scholarship, research, and education. This is a great example of public health in action,” said Kari Nadeau, chair of @harvardenvhealth.bsky.social.
“People naturally choose different activities over time based on their preferences and health conditions. When deciding how to exercise, keep in mind that there may be extra health benefits to engaging in multiple types of physical activity,” said Harvard Chan School researcher Yang Hu.
Exercise variety—not just amount—linked to lower risk of premature mortality | Harvard T.H. Chan School of Public Health
Consistently engaging in a variety of types of exercises—from walking to weightlifting to gardening—was associated with a lower risk of premature mortality, even when total physical activity level was...
hsph.harvard.edu
February 6, 2026 at 8:54 PM
“People naturally choose different activities over time based on their preferences and health conditions. When deciding how to exercise, keep in mind that there may be extra health benefits to engaging in multiple types of physical activity,” said Harvard Chan School researcher Yang Hu.
The federal administration’s actions over the past year—including dismantling USAID, cutting ties with the WHO, and overhauling vaccine recommendations—are expected to take a huge toll on health, according to Harvard Chan School’s Vanessa Kerry.
From air pollution to disease outbreaks: Assessing health impacts of Trump administration policies | Harvard T.H. Chan School of Public Health
Trump administration actions over the past year are expected to take a huge toll on health, according to Harvard Chan School’s Vanessa Kerry.
hsph.harvard.edu
February 5, 2026 at 8:55 PM
The federal administration’s actions over the past year—including dismantling USAID, cutting ties with the WHO, and overhauling vaccine recommendations—are expected to take a huge toll on health, according to Harvard Chan School’s Vanessa Kerry.
Watch live: Two deans of leading schools of public health will explore how to navigate a rapidly evolving landscape in public health education — @yalesph.bsky.social's @meganranney.bsky.social and Harvard's @deanbaccarelli.bsky.social discuss everything from generative AI to the current job market.
Leading public health schools: A conversation with Deans Megan Ranney and Andrea Baccarelli
YouTube video by Harvard T.H. Chan School of Public Health
www.youtube.com
February 5, 2026 at 6:02 PM
Watch live: Two deans of leading schools of public health will explore how to navigate a rapidly evolving landscape in public health education — @yalesph.bsky.social's @meganranney.bsky.social and Harvard's @deanbaccarelli.bsky.social discuss everything from generative AI to the current job market.
Reposted by Harvard T.H. Chan School of Public Health
Honored to be new director @harvardpopcenter.bsky.social, following in Lisa Berkman's footsteps. I'm excited to inherit a brilliant & dedicated staff + network of research & community affiliates. Looking forward to advancing our mission of improving wellbeing of global populations! @hsph.harvard.edu
Rita Hamad, MD, PhD, a leading social epidemiologist, has been appointed the next director of the Harvard Pop Center. Read about this leadership transition in today’s Harvard Gazette. @ritahamad.bsky.social @apc.org @hsph.harvard.edu @harvard.edu hsph.me/hcpds_new_di...
January 29, 2026 at 2:23 PM
Honored to be new director @harvardpopcenter.bsky.social, following in Lisa Berkman's footsteps. I'm excited to inherit a brilliant & dedicated staff + network of research & community affiliates. Looking forward to advancing our mission of improving wellbeing of global populations! @hsph.harvard.edu
Reposted by Harvard T.H. Chan School of Public Health
New Q&A with @motohikoadomi.bsky.social about what it's like to be student at @hsph.harvard.edu in pharmacopepidemiology!
➡️ Read Q&A: hsph.harvard.edu/epidemiology...
➡️ Learn about our 13 areas of research: hsph.harvard.edu/department/e...
#harvard #recentgraduates #masters #PhD
➡️ Read Q&A: hsph.harvard.edu/epidemiology...
➡️ Learn about our 13 areas of research: hsph.harvard.edu/department/e...
#harvard #recentgraduates #masters #PhD
Graduate Profile: Q&A with Motohiko Adomi | Harvard T.H. Chan School of Public Health
Name: Motohiko Adomi
hsph.harvard.edu
February 2, 2026 at 3:10 PM
New Q&A with @motohikoadomi.bsky.social about what it's like to be student at @hsph.harvard.edu in pharmacopepidemiology!
➡️ Read Q&A: hsph.harvard.edu/epidemiology...
➡️ Learn about our 13 areas of research: hsph.harvard.edu/department/e...
#harvard #recentgraduates #masters #PhD
➡️ Read Q&A: hsph.harvard.edu/epidemiology...
➡️ Learn about our 13 areas of research: hsph.harvard.edu/department/e...
#harvard #recentgraduates #masters #PhD
Reposted by Harvard T.H. Chan School of Public Health
Save the date for the 21st Kolokotrones Symposium! 📌
📆 April 3, 2026
📍 In-person @hsph.harvard.edu or online
Spring symposium details to be announced in the coming weeks. #causalinference #publichealth
📆 April 3, 2026
📍 In-person @hsph.harvard.edu or online
Spring symposium details to be announced in the coming weeks. #causalinference #publichealth
February 3, 2026 at 8:06 PM
Save the date for the 21st Kolokotrones Symposium! 📌
📆 April 3, 2026
📍 In-person @hsph.harvard.edu or online
Spring symposium details to be announced in the coming weeks. #causalinference #publichealth
📆 April 3, 2026
📍 In-person @hsph.harvard.edu or online
Spring symposium details to be announced in the coming weeks. #causalinference #publichealth
Join us on February 19 for a Studio event featuring Harvard Chan alumni discussing how to bring innovation to public health. Discover how our alumni built their careers and learn how to apply their insights to your own professional journey.
Register and submit your questions: hsph.me/AlumniInsights
Register and submit your questions: hsph.me/AlumniInsights
February 4, 2026 at 10:29 PM
Join us on February 19 for a Studio event featuring Harvard Chan alumni discussing how to bring innovation to public health. Discover how our alumni built their careers and learn how to apply their insights to your own professional journey.
Register and submit your questions: hsph.me/AlumniInsights
Register and submit your questions: hsph.me/AlumniInsights
Smoking is the biggest driver of the midlife mortality gap between rural and urban areas, according to research from Harvard Chan School's Ellen Meara.
How smoking divides America -- Harvard Gazette
Mapping the midlife effects of a lethal habit.
news.harvard.edu
February 3, 2026 at 5:10 PM
Smoking is the biggest driver of the midlife mortality gap between rural and urban areas, according to research from Harvard Chan School's Ellen Meara.
“Unfortunately, the expiration of the ACA enhanced subsidies is a very significant blow to insurance coverage and affordability.“
@harvardhpm.bsky.social’s Meredith Rosenthal discusses the impact of higher premiums and explains why health care costs keep rising.
@harvardhpm.bsky.social’s Meredith Rosenthal discusses the impact of higher premiums and explains why health care costs keep rising.
Health insurance premiums are rising—here’s why | Harvard T.H. Chan School of Public Health
Health policy expert Meredith Rosenthal discusses the impact of higher premiums and explains why health care costs keep rising.
hsph.harvard.edu
January 29, 2026 at 10:37 PM
“Unfortunately, the expiration of the ACA enhanced subsidies is a very significant blow to insurance coverage and affordability.“
@harvardhpm.bsky.social’s Meredith Rosenthal discusses the impact of higher premiums and explains why health care costs keep rising.
@harvardhpm.bsky.social’s Meredith Rosenthal discusses the impact of higher premiums and explains why health care costs keep rising.
During an upcoming Harvard Chan Studio event, two deans of leading schools of public health—@meganranney.bsky.social of @yalesph.bsky.social and @deanbaccarelli.bsky.social—will explore how to navigate a rapidly evolving landscape in public health education.
Register to join us on Feb 5 at 1 pm ET:
Register to join us on Feb 5 at 1 pm ET:
Leading public health schools today and tomorrow: A conversation with Deans Megan Ranney and Andrea Baccarelli | Harvard T.H. Chan School of Public Health
In this fireside chat, two deans of leading schools of public health will explore how to navigate a rapidly evolving landscape in public health education.
hsph.harvard.edu
January 28, 2026 at 10:51 PM
During an upcoming Harvard Chan Studio event, two deans of leading schools of public health—@meganranney.bsky.social of @yalesph.bsky.social and @deanbaccarelli.bsky.social—will explore how to navigate a rapidly evolving landscape in public health education.
Register to join us on Feb 5 at 1 pm ET:
Register to join us on Feb 5 at 1 pm ET:
“Public health is about loving others.“
With a full-time job at a digital health startup and two young kids, Victor Zhao says that Harvard Chan’s hybrid MPH program is the perfect fit. His courses have already provided him with quantitative skills that are helping him to advance his career.
With a full-time job at a digital health startup and two young kids, Victor Zhao says that Harvard Chan’s hybrid MPH program is the perfect fit. His courses have already provided him with quantitative skills that are helping him to advance his career.
Victor Zhao, MPH '27, finds support from family, mentors, and fellow innovators
YouTube video by Harvard T.H. Chan School of Public Health
youtu.be
January 27, 2026 at 10:26 PM
“Public health is about loving others.“
With a full-time job at a digital health startup and two young kids, Victor Zhao says that Harvard Chan’s hybrid MPH program is the perfect fit. His courses have already provided him with quantitative skills that are helping him to advance his career.
With a full-time job at a digital health startup and two young kids, Victor Zhao says that Harvard Chan’s hybrid MPH program is the perfect fit. His courses have already provided him with quantitative skills that are helping him to advance his career.
@billhanage.bsky.social offers his perspective on the new U.S. childhood immunization schedule, which reduces the number of universally recommended vaccines from 17 to 11: “The bottom line is that if fewer people are protected, there will be more preventable illness, suffering, and death.“
Making sense of the new U.S. childhood vaccine recommendations | Harvard T.H. Chan School of Public Health
Harvard Chan School's Bill Hanage offers his perspective on the new U.S. childhood immunization schedule, which reduces the number of universally recommended vaccines from 17 to 11.
hsph.harvard.edu
January 26, 2026 at 10:04 PM
@billhanage.bsky.social offers his perspective on the new U.S. childhood immunization schedule, which reduces the number of universally recommended vaccines from 17 to 11: “The bottom line is that if fewer people are protected, there will be more preventable illness, suffering, and death.“
Sanchita Gera, MPH ’26, is exploring how social and environmental factors outside the hospital walls affect some patients’ health more than others.
Gera, a Fulbright Scholar, is pursuing two interdisciplinary concentrations: Climate Change and Planetary Health and Humanitarian Studies.
Gera, a Fulbright Scholar, is pursuing two interdisciplinary concentrations: Climate Change and Planetary Health and Humanitarian Studies.
MPH student takes an interdisciplinary approach to climate-related health inequities
Sanchita Gera, MPH ’26, is exploring how social and environmental factors outside the hospital walls affect some patients’ health more than others.
hsph.harvard.edu
January 23, 2026 at 10:04 PM
Sanchita Gera, MPH ’26, is exploring how social and environmental factors outside the hospital walls affect some patients’ health more than others.
Gera, a Fulbright Scholar, is pursuing two interdisciplinary concentrations: Climate Change and Planetary Health and Humanitarian Studies.
Gera, a Fulbright Scholar, is pursuing two interdisciplinary concentrations: Climate Change and Planetary Health and Humanitarian Studies.
Harvard Chan School researchers have discovered a new method for delivering biological “cargo” directly into specific cells using tiny, naturally produced particles called ARMMs (ARRDC1-mediated microvesicles).
Special delivery: New technique to carry biological ‘cargo’ into targeted cells could lead to more effective disease treatments | Harvard T.H. Chan School of Public Health
Harvard Chan School researchers have discovered a new method for delivering biological “cargo” directly into specific cells using tiny, naturally produced particles called ARMMs (ARRDC1-mediated micro...
hsph.harvard.edu
January 23, 2026 at 7:12 PM
Harvard Chan School researchers have discovered a new method for delivering biological “cargo” directly into specific cells using tiny, naturally produced particles called ARMMs (ARRDC1-mediated microvesicles).
The latest research study from the Football Players Health Study at Harvard University found that NFL players face an increased risk of suicide compared to their basketball and baseball counterparts.
Learn more from Harvard Chan School’s Rachel Grashow and Marc Weisskopf, lead authors of the study:
Learn more from Harvard Chan School’s Rachel Grashow and Marc Weisskopf, lead authors of the study:
Study shows rise in suicide rate among NFL players | Harvard T.H. Chan School of Public Health
Harvard Chan School's Rachel Grashow and Marc Weisskopf discuss the findings of their latest research from the Football Players Health Study.
hsph.harvard.edu
January 22, 2026 at 7:45 PM
The latest research study from the Football Players Health Study at Harvard University found that NFL players face an increased risk of suicide compared to their basketball and baseball counterparts.
Learn more from Harvard Chan School’s Rachel Grashow and Marc Weisskopf, lead authors of the study:
Learn more from Harvard Chan School’s Rachel Grashow and Marc Weisskopf, lead authors of the study:
The EPA will scrap its longstanding practice of calculating the economic benefits related to human health when it sets air pollution limits. Pulmonologist Mary Rice is worried about the health impacts. @harvardenvhealth.bsky.social
EPA will no longer consider health-related monetary benefits of reducing air pollution | Harvard T.H. Chan School of Public Health
The EPA will scrap its longstanding practice of calculating the economic benefits related to human health when it sets air pollution limits. Pulmonologist Mary Rice is worried about the health impacts...
hsph.harvard.edu
January 21, 2026 at 10:23 PM
The EPA will scrap its longstanding practice of calculating the economic benefits related to human health when it sets air pollution limits. Pulmonologist Mary Rice is worried about the health impacts. @harvardenvhealth.bsky.social
Harvard Chan School immunologist @yhgrad.bsky.social says it’s not too late to get the flu vaccine. “Especially as we expect the flu to stick around through the next few months. It’s worth noting that it takes about two weeks after vaccination for the protection to kick in.”
Why it seems like everyone has the flu this year — Harvard Gazette
Immunologist says it’s not too late to get vaccinated.
news.harvard.edu
January 14, 2026 at 11:31 PM
Harvard Chan School immunologist @yhgrad.bsky.social says it’s not too late to get the flu vaccine. “Especially as we expect the flu to stick around through the next few months. It’s worth noting that it takes about two weeks after vaccination for the protection to kick in.”
Harvard Chan School’s Teresa Fung, Edward Giovannucci, Deirdre Tobias, and colleagues on the Dietary Guidelines for Americans advisory committee pored over nutrition research for two years to help inform the development of the new guidelines.
Read their full commentary: https://bit.ly/49nzpXC
Read their full commentary: https://bit.ly/49nzpXC
January 13, 2026 at 11:48 PM
Harvard Chan School’s Teresa Fung, Edward Giovannucci, Deirdre Tobias, and colleagues on the Dietary Guidelines for Americans advisory committee pored over nutrition research for two years to help inform the development of the new guidelines.
Read their full commentary: https://bit.ly/49nzpXC
Read their full commentary: https://bit.ly/49nzpXC
Mojdeh Mostafavi, MPH ’26, has seen firsthand the ways the health system is not geared toward helping people like her brother with autism. She aims to change that.
Read our full profile: https://bit.ly/4qPgwCI
Read our full profile: https://bit.ly/4qPgwCI
January 12, 2026 at 9:56 PM
Mojdeh Mostafavi, MPH ’26, has seen firsthand the ways the health system is not geared toward helping people like her brother with autism. She aims to change that.
Read our full profile: https://bit.ly/4qPgwCI
Read our full profile: https://bit.ly/4qPgwCI
How effective is this year’s flu vaccine? According to preliminary new research by the Penn Centers of Excellence for Influenza Research and Response, it appears to be more effective than originally predicted. @billhanage.bsky.social
Flu shot ‘more than good enough,’ says expert | Harvard T.H. Chan School of Public Health
This year’s flu vaccine appears to be more effective than originally predicted, according to preliminary new research.
hsph.harvard.edu
January 8, 2026 at 10:28 PM
How effective is this year’s flu vaccine? According to preliminary new research by the Penn Centers of Excellence for Influenza Research and Response, it appears to be more effective than originally predicted. @billhanage.bsky.social
A specific genetic difference in a gene called RTP5—known to be involved in smell and taste perception—was linked to a higher risk of early death in patients hospitalized with severe COVID-19, according to a recent study led by researchers at Harvard Chan School. @harvardenvhealth.bsky.social
Genetic difference may help explain wide variation in COVID severity | Harvard T.H. Chan School of Public Health
A specific genetic difference in a gene called RTP5—known to be involved in smell and taste perception—was linked to a higher risk of early death in patients hospitalized with severe COVID-19, a study...
hsph.harvard.edu
January 7, 2026 at 11:15 PM
A specific genetic difference in a gene called RTP5—known to be involved in smell and taste perception—was linked to a higher risk of early death in patients hospitalized with severe COVID-19, according to a recent study led by researchers at Harvard Chan School. @harvardenvhealth.bsky.social
Sharing one of our most-shared posts from 2025.
What do you want to learn from Harvard Chan School faculty and researchers in 2026?
What do you want to learn from Harvard Chan School faculty and researchers in 2026?
Long COVID is still affecting millions — but a key federal office created to study and coordinate the response is shutting down.
In this Q&A, @hsph.harvard.edu's Beth Stelson discusses what we know about #LongCOVID and the ramifications of the office’s closure. hsph.harvard.edu/news/a-long-...
In this Q&A, @hsph.harvard.edu's Beth Stelson discusses what we know about #LongCOVID and the ramifications of the office’s closure. hsph.harvard.edu/news/a-long-...
A long COVID researcher continues to search for answers | Harvard T.H. Chan School of Public Health
Postdoctoral research fellow Beth Stelson, a long COVID researcher, and herself a patient, discusses her research and the ramifications of the closure of a federal office focused on long COVID researc...
hsph.harvard.edu
January 5, 2026 at 10:40 PM
Sharing one of our most-shared posts from 2025.
What do you want to learn from Harvard Chan School faculty and researchers in 2026?
What do you want to learn from Harvard Chan School faculty and researchers in 2026?
Harvard Chan School is taking a social media break during Winter Recess.
From Wednesday, December 24, through Sunday, January 4, the School’s administrative offices are closed. We will be back on your social media feeds in 2026!
From Wednesday, December 24, through Sunday, January 4, the School’s administrative offices are closed. We will be back on your social media feeds in 2026!
December 24, 2025 at 1:00 PM
Harvard Chan School is taking a social media break during Winter Recess.
From Wednesday, December 24, through Sunday, January 4, the School’s administrative offices are closed. We will be back on your social media feeds in 2026!
From Wednesday, December 24, through Sunday, January 4, the School’s administrative offices are closed. We will be back on your social media feeds in 2026!
Real estate investment trust (REIT)-acquired U.S. hospitals were associated with a greater risk of bankruptcy or closure than non-REIT-acquired hospitals, according to a new study led by researchers at Harvard Chan School.
Learn more from Thomas Tsai of @harvardhpm.bsky.social:
Learn more from Thomas Tsai of @harvardhpm.bsky.social:
Hospitals acquired by real estate investment trusts associated with greater risk of bankruptcy, closure | Harvard T.H. Chan School of Public Health
REIT acquisition of hospitals had no significant impacts on quality of clinical care or patient outcomes—but had a significant negative impact on hospital finances, according to a new Harvard Chan Sch...
hsph.harvard.edu
December 23, 2025 at 10:00 PM
Real estate investment trust (REIT)-acquired U.S. hospitals were associated with a greater risk of bankruptcy or closure than non-REIT-acquired hospitals, according to a new study led by researchers at Harvard Chan School.
Learn more from Thomas Tsai of @harvardhpm.bsky.social:
Learn more from Thomas Tsai of @harvardhpm.bsky.social: