Explore our Global Impact

Browse recent news by frontier and drill down into specific topic areas to learn more about the Harvard Chan School’s global impact.

How should we respond to a demographic shift that will change how the world lives, learns, and works? Harvard Chan researchers are digging deep into cellular mechanisms, analyzing statistical patterns across decades of health data, exploring how connection with others is protective, and tracking down other clues to healthier and happier aging.

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We’re better off when we age with resilience

During the earliest days of the pandemic, younger people were told to protect the older adults in their lives from COVID-19 by isolating at home. Concerns about the virus and pandemic restrictions have taken a toll on everyone's…

Aging matters

Sneha Dutta, PhD ’21, wants to understand why individuals age differently and if there’s a way to counter old age’s harmful effects May 18, 2021–As a master’s student studying biology at the Tata Institute of Fundamental Research in…

Better Off: A new podcast from Harvard Chan School

How can we make our families, communities, and our world a little bit better during the COVID-19 crisis, and beyond?  That's the question we're asking on Better Off, a new podcast from Harvard T.H. Chan School of Public…

Op-ed: Want to make the world a healthier place? Vote.

Voting is one of the most potent ways to effect large-scale change in public health, according to Michelle Williams, dean of Harvard T.H. Chan School of Public Health. In an October 16, 2020 op-ed in The Philadelphia Inquirer,…

Gaining insight into women's health

Could an app help scientists better understand menstruation, fertility, and menopause? On the latest episode of This Week in Health, Shruthi Mahalingaiah and JP Onnela talk about the groundbreaking Apple Women’s Health Study. Shruthi Mahalingaiah, an assistant professor of environmental, reproductive, and…

Violence and trauma take many forms. Harvard Chan researchers are using scientific rigor to understand how damage to the body and spirit can be prevented, and develop ways to repair the effects of violence and build resilience in the future.

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Better data needed around deaths in police custody

Two years after the killing of George Floyd by a police officer—and nearly 10 since the start of the Black Lives Matter movement—researchers are examining whether the ensuing protests and national conversation around racism and inequity have had…

The costs of gun violence

Gun violence survivors and their families face increased risk of mental health disorders and substance abuse disorders, according to a new study.

Ukraine’s humanitarian crisis

Russia’s invasion of Ukraine has prompted a massive humanitarian crisis, with mounting military and civilian casualties and more than two million people on the move to escape the violence. In this Big 3 Q&A, Michael VanRooyen, director of…

Making the case for reparations

In the wake of atrocities, violence, and discrimination, reparations can play an important role in improving public health and emotional healing, according to scholars and human rights activists who spoke at a December 10, 2021 virtual event at…

Climate change is one of our greatest public health challenges—but also one of our best opportunities for global progress. Harvard Chan researchers are uncovering the human toll of our changing environment and crafting solutions.

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The case for climate optimism

Amid the gloom and doom that typically shape news and discussions about climate change, a growing number of thought leaders are focusing instead on the positive efforts that are underway in the fight against global warming.

The dangers of extreme heat

Extreme heat—the kind that baked the U.S. and other parts of the world in mid-July—poses grave health risks, according to Aaron Bernstein of Harvard Chan School.

From fast food to no food, from the obesity epidemic sweeping the globe to social isolation and unhappiness, we’re still plagued by barriers to human thriving. The links between our health and how we feel, interact and live are complex and clouded. But thanks to the work of Harvard Chan researchers the path forward has never seemed clearer.

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Cancer rising in people under 50  

Incidence of early onset cancers—including breast, colon, esophagus, kidney, liver, and pancreas—has been dramatically increasing around the world since 1990.

How our environment impacts reproductive health

Carmen Messerlian, assistant professor of environmental reproductive, perinatal, and pediatric epidemiology, studies how the world around us—everything from chemical exposures to trauma to climate change—can affect reproductive health and development.

The dangers of extreme heat

Extreme heat—the kind that baked the U.S. and other parts of the world in mid-July—poses grave health risks, according to Aaron Bernstein of Harvard Chan School.

Humans and pathogens are locked in a bitter arms race—and the pathogens are winning. They are evolving to resist our best medicines, and humanity’s pipeline of effective antibiotic weapons is empty. The next pandemic is a matter of when, not if. Harvard Chan researchers are fighting on many fronts to make sure humanity is ready when the next outbreak inevitably arrives.

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Learning COVID-19’s lessons to prepare for the future

A new Lancet Commission report offers detailed policy recommendations aimed at reducing the dangers of COVID-19, forestalling the next pandemic, and enabling the world to proceed with goals of sustainable development, human rights, and peace.