About this episode: Consumer wearables like Fitbits track a lot of our activity, from time spent standing to estimates of calorie expenditure. What if they could also alert us to possible health issues as we age? In this episode: How movement patterns change with aging, and how researchers are examining ways to measure those patterns to determine what’s normal and what may be associated with cognitive decline and other neurological issues. Guest: Jennifer Schrack is the director of the Johns Hop...
Jun 26, 2025•16 min•Season 12Ep. 912
About this episode: Growing and producing our food comes at an extreme cost to the environment. In this episode: a conversation about climate and agriculture with journalist and author Michael Grunwald, whose blunt new book looks at how the food system is wiping out wetlands, forests, and other carbon reservoirs that protect us from global warming. Guest: Michael Grunwald is a journalist and author who covers public policy. He’s written for Politico Magazine, The Boston Globe, and Washington Pos...
Jun 25, 2025•18 min•Season 12Ep. 911
About this episode: What might be in store for the 2025 hurricane season? Meteorologist Brian McNoldy returns to the podcast to talk about how things are shaping up, a look back at how last summer’s unprecedented mix of heat and moisture played out in an extremely active season, and a zoomed-out look at climate change trends as larger patterns beyond individual events and year-over-year comparisons. Guest: Brian McNoldy is a senior research associate at the Rosenstiel School of Marine Atmosphere...
Jun 23, 2025•12 min•Season 12Ep. 910
About this episode: Juneteenth was declared a federal holiday in 2021 but many people don’t know the history or how to recognize the day. In this episode: a look back at a 2022 conversation with Janice Bowie about how to celebrate, reflect, and recommit to social justice this Juneteenth. Guest: Janice Bowie is a Bloomberg Centennial Professor in Health, Behavior, and Society at the Johns Hopkins Bloomberg School of Public Health. Her research focuses on health equity and disparities. Host: Dr. J...
Jun 18, 2025•11 min•Season 12Ep. 909
About this episode: Homicides in the U.S., particularly those involving gun violence, peaked in 2022 following a rapid rise during the COVID pandemic. In the years that followed, there were notable decreases and 2025, so far, shows one of the most dramatic reductions in homicides in decades. In this episode: A look at some of the reasons behind the rise and fall of deaths, and why staying the policy course may be key to avoiding another spike. Guest: Daniel Webster is a Bloomberg Professor of Am...
Jun 17, 2025•15 min•Season 12Ep. 908
About this episode: Humanitarian health systems provide relief like food, water, and medicine in crisis situations. They operate within a carefully organized framework built on core principles including impartiality and neutrality. In this episode: what's happening with humanitarian aid in Gaza and the importance of a new framework for global humanitarian efforts. Guest: Dr. Paul Spiegel is a physician, epidemiologist and the director of the Center for Humanitarian Health at the Johns Hopkins Bl...
Jun 16, 2025•19 min•Season 12Ep. 907
About this episode: In 2016, the nonprofit Braver Angels was founded to bring together diverse groups of people to try and figure out why productive communication has become so difficult. During the pandemic, the conversations got even harder. In this episode: How Braver Angels is bringing together questioners and supporters of public health to hear each other out with a goal of humanizing, understanding, and remembering that “everyone is worth listening to.” Guests: Dr. Leslie Lapato is a retir...
Jun 12, 2025•16 min•Season 12Ep. 906
About this episode: A recent MAHA report from the Department of Health and Human Services stated that a trio of common procedures for children—tonsillectomy, adenoidectomy, and tympanostomy tube (ear tube) placement—“cause harm without offering benefits.” In this episode: a look at what these surgeries are, the advantages and risks, and what the report said—and didn’t say—about the value of these procedures when properly indicated. Guests: Dr. Emily Boss is the director of pediatric otolaryngolo...
Jun 11, 2025•14 min•Season 12Ep. 905
About this episode: Would it be a good idea to have tariffs on pharmaceuticals? In this episode: a conversation about the rationales for tariffs as well as potential downsides—like higher drug prices—and what could really help with supply and pricing issues. Guest: Dr. Mariana Socal studies the pharmaceutical market and is an associate professor in Health Policy and Management at the Johns Hopkins Bloomberg School of Public Health. Host: Dr. Josh Sharfstein is vice dean for public health practic...
Jun 09, 2025•14 min•Season 12Ep. 904
About this episode: A new report from the Safeguarding Health in Conflict Coalition documents incidents of violence against health care facilities and workers in conflict zones around the world. In this episode: why it’s important to track these trends, how incidents are reported and investigated, and a look at the 2024 report with examples from various conflict zones around the world including Sudan, Ukraine, and Gaza. Note: These podcasts are a conversation between the participants, and do not...
Jun 05, 2025•19 min•Season 12Ep. 903
About this episode: June is Gun Violence Awareness Month with a focus on safe storage, a key factor in preventing gun-related injuries and deaths. In this episode: a look at how safe storage saves lives, evidence-based tools and tips for lawmakers, gun owners, parents, pediatricians, and more; and how to normalize conversations about safe storage in everyday life. Guests: Dr. Katherine Hoops , is a pediatrician and the director of Clinical Practice at the Johns Hopkins Center for Gun Violence So...
Jun 04, 2025•15 min•Season 12Ep. 902
About this episode: Last week, Health Secretary Robert F. Kennedy, Jr., announced that the COVID vaccine will no longer be recommended for healthy children or pregnant women. In this episode: a vaccine policy expert unpacks the announcement — how it differs from past policy changes, and its potential impact on Americans. Note: This episode was recorded on May 28, 2025. Guest: Sarah Despres has over 25 years of experience in public health policy and advocacy and is an expert on immunization polic...
Jun 03, 2025•19 min•Season 12Ep. 901
About this episode: Travel can open our eyes to the world and make us better global citizens. But there’s no denying the environmental impacts of travel. Plus, with climate change happening everywhere, it’s becoming more difficult for tourists to predictably see and do some things without factoring in extreme weather. In this episode: how travelers can be more mindful and a look at how a travel company is thinking about the industry’s carbon footprint. Guest: Cameron Hewitt is a travel writer an...
Jun 02, 2025•18 min•Season 12Ep. 900
About this episode: The approval of pediatric COVID vaccines during the height of the pandemic brought reassurance to many parents and pediatricians who were caring for children with severe infections and, sometimes, Multi-system Inflammatory Syndrome in Children (MISC)—a rare but extremely dangerous condition that could impact even the healthiest kids after a COVID infection. But what’s the picture of pediatric COVID vaccination now? In this episode: a discussion about the risks and benefits of...
May 23, 2025•14 min•Season 11Ep. 899
About this episode: A look inside the ongoing public health response to measles outbreaks in Lubbock, a city in West Texas. Guest: Katherine Wells is the director of Lubbock Public Health in West Texas. Host: Dr. Josh Sharfstein is vice dean for public health practice and community engagement at the Johns Hopkins Bloomberg School of Public Health, a faculty member in health policy, a pediatrician, and former secretary of Maryland’s Health Department. Show links and related content: Lubbock’s pub...
May 22, 2025•16 min•Season 11Ep. 898
About this episode: It’s graduation time at the Bloomberg School! Doctoral candidate Jeff Marr joins the podcast to talk about how an economics major and an early internship at a health care system led to an interest in examining how health care markets and public policy work. Soon-to-be Dr. Marr discusses his dissertation looking at how predictive algorithms lead to decisions about care coverage. Guest: Jeffrey Marr is a healthcare economist and doctoral candidate at the Johns Hopkins Bloomberg...
May 21, 2025•14 min•Season 11Ep. 897
About this episode: While cigarette use has radically declined in the U.S., many still die from smoking here and around the world. World No Tobacco Day—celebrated annually on May 31 since the 1980s—has helped expose tobacco industry tactics and highlight progress in global tobacco control. This year, a look at how manufacturers are increasing efforts to hook younger users on new products like e-cigs with fun packaging, new flavors, fashionable designs, and gimmicks including video games and soci...
May 19, 2025•17 min•Season 11Ep. 896
About this episode: This week, President Trump signed an Executive Order aimed at lowering prescription drug costs. In this episode: a look at why the U.S. spends three to four times more for drugs than many peer countries, its current approach to drug pricing policy, the directives laid out in the Executive Order, and how other countries negotiate their prices. Note: These podcasts are a conversation between the participants, and do not represent the position of Johns Hopkins University. Guest:...
May 16, 2025•16 min•Season 11Ep. 895
About this episode: Diagnoses of autism are on the rise, but is this the result of more children being affected by the condition, or is more of a consequence of broader criteria and more screening? In this episode: a look at a new study about the number of children diagnosed with autism and what this research shows—and doesn’t show. Guest: Dr. Christine Ladd-Acosta is an autism researcher and vice-director of the Wendy Klag Center for Autism and Developmental Disabilities . She is the lead Maryl...
May 15, 2025•13 min•Season 11Ep. 894
About this episode: In 2003, George W. Bush’s President’s Emergency Plan for AIDS Relief (PEPFAR) was the largest commitment to a single disease in U.S. history. Renewed under every subsequent presidency since, PEPFAR has saved more than 25 million lives and prevented some 5 million perinatal infections globally. But now, policy changes that effectively end PEPFAR have the potential to completely reverse course and the world could see HIV/AIDS infections on par with a time even before effective ...
May 14, 2025•18 min•Season 11Ep. 893
About this episode: A look back at health policy in the first 100 days of Trump’s second presidential administration including global health, vaccines, and the Department of Health and Human Services restructuring—plus a few things to keep an eye on for the future. Note: These podcasts are a conversation between the participants and do not represent the position of Johns Hopkins University. Guest: Dr. Josh Sharfstein served in a number of political roles in his career including as the Secretary ...
May 12, 2025•17 min•Season 11Ep. 892
About this episode: In the early 2000s, babies in Baltimore were dying at an alarming rate. In this episode: a look at Baltimore’s enormously successful health program to reduce infant mortality and close unacceptable disparities in infant death and how it has developed into a program that offers support and resources for individuals and families across the lifespan. Guests: Dr. Josh Sharfstein is the vice dean for public health practice and community engagement at the Johns Hopkins Bloomberg Sc...
May 07, 2025•25 min•Season 11Ep. 891
About this episode: The National Institute for Occupational Safety and Health (NIOSH) is an agency within the Department of Health and Human Services with a mission to protect the nation’s workforce from occupational hazards and illnesses. Their work includes setting policy and best practices around safety standards for things like exposure to toxic chemicals, firearms in the workplace, and even protecting workers’ data. NIOSH is among the many Centers that suffered personnel and funding cuts un...
May 05, 2025•16 min•Season 11Ep. 890
About this episode: Zyn nicotine pouches are suddenly everywhere. What are they and how can they impact health? In this episode: A look at the popular products, what they are and how they work, how they’re marketed, and what we know—and don’t yet know—about their long-term health impacts or whether they could be a tool to help people quit tobacco products. Guest: Meghan Moran is an associate professor in the Department of Health, Behavior and Society at the Johns Hopkins Bloomberg School of Publ...
Apr 30, 2025•18 min•Season 11Ep. 889
About this episode: Dr. Scott Harris has worked as a leader in Alabama’s public health department for eight years and recently became that national president of the Association of State and Territorial Health Officials. In this episode: A conversation with Dr. Harris about lessons learned from the pandemic and how the current moment is presenting new challenges with measles outbreaks and plenty of unknowns. He also talks about keeping his staff motivated and on task to meet their bottom line: pr...
Apr 29, 2025•17 min•Season 11Ep. 888
About this episode: May is Lyme and Tickborne Diseases Awareness Month. In this episode: Dr. Nicole Baumgarth talks all things ticks including how climate change is increasing their territory, the diseases they spread such as Lyme and Heartland virus, disease prevention, and the latest on vaccines and treatments. Guest: Dr. Nicole Baumgarth is the director of the Johns Hopkins Lyme and Tickborne Diseases Research and Education Institute . Host: Stephanie Desmon, MA, is a former journalist, autho...
Apr 28, 2025•16 min•Season 11Ep. 887
About this episode: Since 2021, countries have been drafting a treaty to help the world better prevent and respond to pandemics. On April 16, the WHO announced an agreement for the world's first pandemic treaty. In this episode: a look at what it took to get here, what provisions were included and excluded, and what it means that the U.S. was not at the table for negotiations and will not be a signer. Guest: Alexandra Phelan is an expert in global health law and an associate professor and senior...
Apr 24, 2025•14 min•Season 11Ep. 886
About this episode: World Malaria Day is April 25. In this episode: guest host Thomas Locke takes us to Capitol Hill where we meet malaria champions, scientists, and leaders who gather in Washington, DC, as part of the ‘United to Beat Malaria’ campaign urging Congress to continue supporting global malaria efforts. Show links and related content: The Malaria Minute Podcast —The Johns Hopkins Malaria Research Institute United to Beat Malaria Transcript information: Looking for episode transcripts?...
Apr 23, 2025•17 min•Season 11Ep. 885
About this episode: In honor of Earth Day, we bring you a special episode of Public Health On Call: an essay read by Sam Myers, director of the Johns Hopkins Institute for Planetary Health. In his essay, he explores the incredible human evolution and technological innovation that has brought us to a moment in time where our own ascendance is threatening our future well-being on this planet. It’s time to face a crucial question: Can we change? Guest: Sam Myers is the founding director of the Plan...
Apr 22, 2025•9 min
About this episode: News about HKU5, a new bat coronavirus with the ability to spread to humans, was met with concerns in the scientific community—mostly because of how the research was done. In this episode: Johns Hopkins virologist Andy Pekosz talks about the different levels of biosecurity in laboratories where scientists study some of the world’s most dangerous viruses, how these standards vary worldwide, and what that could mean for studying future viruses with pandemic potential. Guest: Dr...
Apr 21, 2025•16 min•Season 11Ep. 884
