For decades, the message has been simple: if you want to lose weight, you need to exercise more. But what happens when a medication can do the heavy lifting for you? GLP-1 drugs are reshaping everything we thought we knew about weight loss, and that means the role of exercise is changing, too. Not disappearing. Changing.

Join Holly and Jim as they sit down with Dr. Renee Rogers, senior scientist at the University of Kansas Medical Center and expert in biobehavioral lifestyle interventions, to explore this new frontier. If you've ever struggled to stick with exercise, felt guilty for not doing enough, or wondered whether movement even matters now that medications like Ozempic and Wegovy exist, this conversation was made for you.

The answer isn't what you'd expect. Exercise isn't less important in the age of GLP-1s. It's more important just for entirely different reasons.

Discussed on the episode:

• The one word that could completely transform your relationship with exercise
• Why losing muscle during weight loss isn't always the crisis people think it is (but also why you shouldn't ignore it)
• The surprising link between fatigue on GLP-1 medications and physical activity levels
• Why cardio vs. strength training is the wrong question to ask (and what to ask instead)
• The exercise myth Dr. Rogers would delete from the internet forever
• How the timing of your GLP-1 dose might affect when you should work out
• What to focus on after you've hit your goal weight

You hit your goal weight. Then, hunger crept back in, your energy dropped, and the scale rose. Sound familiar? You're not broken, your body is built for this.

In this episode, Holly and Jim sit down with Dr. Rudy Leibel, one of the most influential obesity researchers in history, a Columbia University scientist whose team cloned the leptin gene and fundamentally changed the world's understanding of obesity. What was once dismissed as a willpower problem, Dr. Leibel helped prove is a deeply biological one. And his groundbreaking work laid the foundation for the very GLP-1 medications making headlines today.

If you've ever felt like your body is working against you, this episode will explain how your body’s biology impacts weight, share practical strategies for managing it, and offer real reasons for optimism about what's coming next.

Discussed on the episode:

• The evolutionary reason your body panics the moment you start losing weight
• Why the biological drive to regain never truly lets up, and what successful "maintainers" are actually doing differently
• The surprising reason metabolic adaptation may not predict who regains weight
• What "threshold" vs. "set point" means for your biology and why the distinction matters
• Why GLP-1 medications are more like aspirin for a fever than a true fix for the underlying biology
• The next frontier in obesity treatment that the pharmaceutical industry hasn't fully tackled yet
• What yo-yo dieting on a GLP-1 could mean for your body, and when it becomes a real concern.
• The honest answer to: "Do I have to be on semaglutide forever?"
• At what age does obesity risk "lock in" for kids, and what should parents actually do about it
• Whether there will ever be a single solution to obesity (Dr. Leibel doesn't hold back)
• What Dr. Leibel is doing with the next decade of his career, and why it involves growing brain cells in a dish

You've probably told yourself the story before: "I'm just lazy. I should want to exercise. Something must be wrong with me." But what if science says you're not lazy at all? What if avoiding the treadmill is one of the most deeply human things you can do?

This week, Holly and Jim are joined by Dr. Daniel Lieberman, professor of human evolutionary biology at Harvard University and author of The Story of the Human Body and Exercised. Dan has spent his career studying why humans move the way we do — and more importantly, why we so often don't. His research with hunter-gatherers around the world has turned some of our most cherished fitness beliefs completely upside down. If you've ever felt guilty for skipping the gym, this episode will change how you see yourself.

From the real reason modern exercise feels so unnatural, to what GLP-1 medications are quietly doing to your muscles, to why "no pain, no gain" might be the worst advice in fitness history, this conversation goes deep into the evolutionary science of movement and what it actually takes to build a life where physical activity sticks.

Discussed on the episode:

• The surprising reason no animal on earth exercises except humans (and why that matters for your motivation)
• Why hunter-gatherers sit just as much as we do, but avoid the health consequences we don't
• The real difference between losing weight with exercise and keeping it off, and why the dosage is not the same
• What a study of people running a marathon every day across the United States revealed about behavioral compensation
• The GLP-1 muscle problem no one is talking about, and why exercise may be the only real fix
• Why the treadmill was literally invented as a punishment device (and what that tells us about modern fitness culture)
• The running form insight that could protect your knees and why your cushioned shoes may not be helping the way you think
• What evolution says about the "best" type of exercise for weight management