If you’ve ever felt like you have to choose between running for your heart or lifting for strength, I’m here to tell you that’s the wrong question. In this episode, I walk through the simple truth the research keeps repeating: cardio and resistance training do different jobs, and if you want your workouts to fight aging—not just burn calories—you need both.

I’ll explain why cardio is great at supporting your heart and metabolism, but why lifting is the lever that protects the stuff that actually makes aging harder: muscle, bone density, and the ability to keep moving well. We’ll talk about bones in particular—because they don’t respond to wishful thinking. They respond to force. If you want stronger hips and spine over time, you have to put your body under a load that feels heavy.

Then I get into the real reason most of us skip strength work: not laziness—friction. The tiny barriers (drive time, waiting for equipment, “I’ll do it later”) quietly kill the habit. So I share the strategy that actually works: habit stacking—bolting lifting onto the cardio you already do, so it becomes automatic instead of optional.

I’ll also give you my favorite “zero commute” tools that take up almost no space—a doorstop kettlebell, a weighted vest, a sandbag—and exactly what “heavy” means in real life (hint: 8–12 reps, with the last two feeling brutal). Because the bottom line is this: your heart needs movement… but your bones need battle.Dr. Marbas Substack: https://drlauriemarbas.substack.com/

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