The Source

David Martin Davies

Government

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The hustle of the muscle and you
Many of us tend to take our muscles for granted. They are the unsung heroes of our bodies. They are the stuff that moves us and keeps us healthy. But as we age, how much can we rely on our muscles? What are the secrets of our muscles? Journalist and author Bonnie Tsui takes a deep dive into the science, history, and personal narratives that shape our understanding of muscle in her book, On Muscle: The Stuff that Moves Us and Why it Matters.
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After ICE detains: What happened to Carmen Herrera
Earlier this summer Carmen Herrera was detained by ICE outside of San Antonio’s immigration court. She’s a mother of five girls who are all U.S. citizens and she is also married to a U.S. citizen. After she was detained, Herrera’s nightmare began—and it’s a story shared by many in our community. Herrera’s story is told in a new documentary.
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San Antonio researcher highlights “pre-prediabetes” as new early warning sign
A first of its kind study challenges the conventional thinking about the onset of Type 2 diabetes and identifies the signs of risks before pre-diabetes. Called "pre-prediabetes," it zeroes in on people with insulin resistance and shows that diabetes is a continuous disease that demands early detection and intervention through lifestyle changes.
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San Antonio metro area residents are breathing some of the most polluted air in the country
The American Lung Association's 2025 “State of the Air” report finds that the San Antonio metro area is one of the worst regions for air quality. There are rising concerns about asthma, allergies and chronic respiratory illness. What are the sources for local air pollution and is stronger EPA action necessary to help everyone breathe a little easier.
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Is free speech under threat?
Free speech is the cornerstone of American democracy. That’s why it’s in the First Amendment. But today, it’s under pressure from every direction. From the White House to college campuses to late night TV, the battle is on over who gets to speak — and who gets silenced. What happens when Americans are afraid to speak out?
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About The Source

The Source is a daily, one-hour call-in talk program that gives listeners in San Antonio the opportunity to call and connect with our in-studio guests and city-wide audience.The Source seeks to give life, context and breadth to the events and issues affecting San Antonio by bringing newsmakers and experts to the public, and highlighting the people being affected by the news of the day.The show is hosted by veteran journalist David Martin Davies.Tune in to The Source for insightful discussion and analysis on topics that matter to residents of the Alamo City.Contribute to the conversation:Call or text during the live show at 833-877-8255.Leave a voicemail at 210 615-8982 anytime. Submissions may be played on-air.Email comments to [email protected].

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