Listen on: Apple Podcasts | Spotify | Amazon Music | Podcast Index | Overcast | YouTube You’ve just had a baby, you’re holding this tiny new human, and a nurse walk in and says, “Time for the hepatitis B vaccine.” For over 30 years, that’s been standard for almost every newborn in America. But in December 2025, a federal vaccine advisory committee voted to change this […]

Listen on: Apple Podcasts | Spotify | Amazon Music | Podcast Index | Overcast | YouTube If you’ve felt a rising unease about microplastics, you’re not alone. They’re turning up in water, food, indoor air—and yes, in human tissues. The science is early and imperfect, but a few signals deserve our attention while we keep our cool and focus on pragmatic steps. First, a quick level […]

Listen on: Apple Podcasts | Spotify | Amazon Music | Podcast Index | Overcast | YouTube Here’s the paradox I see every week: exercise is the single most powerful intervention for healthy aging—yet one poorly timed injury can erase months (even years) of progress. Where’s the line between “use it or lose it” and unnecessary risk? As a physician, scientist, and Ironman triathlete in my late […]

Listen on: Apple Podcasts | Spotify | Amazon Music | Podcast Index | Overcast | YouTube We’ve all been there. A French fry tumbles from your plate and lands on the kitchen floor. You glance around, grab it within seconds, and tell yourself it’s fine—the five-second rule means bacteria haven’t had time to transfer, right? Not so fast. Let’s dig into what the evidence actually tells […]

Listen on: Apple Podcasts | Spotify | Amazon Music | Podcast Index | Overcast | YouTube A new study says a supplement helps you live longer. A medical society tells parents to avoid peanuts—then years later urges early introduction. Hormone therapy is good, then harmful, and now… it depends. If you’ve ever wondered what to believe—and how to separate fact from fancy—you’re in the right place. […]

Listen on: Apple Podcasts | Spotify | Amazon Music | Podcast Index | Overcast | YouTube Ultra-processed foods now make up 60% of the American diet. With obesity and diabetes rates soaring, many blame these convenient, affordable foods for our health crisis. As a physician and scientist, I’ve examined the evidence to understand what’s real and what’s hype. How We Got Here Just 75 years ago, […]

Listen on: Apple Podcasts | Spotify | Amazon Music | Podcast Index | Overcast | YouTube Cancer is a word none of us want to hear—and yet, about 1 in 3 people in the U.S. will be diagnosed with it during their lifetime. It’s the second leading cause of death, and for many, it’s the most terrifying. But here’s something you may not hear enough: about […]

Listen on: Apple Podcasts | Spotify | Amazon Music | Podcast Index | Overcast | YouTube We’ve all heard the heartfelt reassurances—“I’ll pray for you,” “Your positive spirit will beat this,” or “Just stay optimistic.” These sentiments are comforting, but when serious illness strikes, the real question becomes: Does the power of positive thinking actually help? Let’s explore what the evidence says—starting with an area where […]

Listen on: Apple Podcasts | Spotify | Amazon Music | Podcast Index | Overcast | YouTube Eventually, you or someone you love will face a serious illness. It often comes suddenly—a scan, a biopsy, a moment in a quiet room when the doctor delivers news that splits life into “before” and “after.” I’ve walked this road with patients. Recently, I walked it again—with my wife, Gail. […]

Listen on: Apple Podcasts | Spotify | Amazon Music | Podcast Index | Overcast | YouTube Do you find yourself reaching for a second helping even when you’ve eaten quite a few calories? Or struggling to cut back on calories, only to feel constantly unsatisfied? You’re not alone—and it turns out that how much we eat is heavily influenced by what we eat. I’ve personally seen […]