Your Butt is a Longevity Organ (Here’s how to train it!) | Gabrielle Lyon : 1405

Ectopic fat in muscle drives disease more than body fat percentage

The guest explains that intermuscular fat deposits drive insulin resistance, inflammation, and poor muscle function more than overall body fat percentage, challenging the standard BMI-focused view of metabolic health.

"body fat percentage is a biomarker. I do not think it is as relevant as intermuscular out-of-post tissue. It's that ectopic fat depot in muscle that seem to drive disease."

Exercise improves metabolism regardless of whether body fat changes

The episode emphasizes that the simple act of exercising and emptying the metabolic tank improves insulin sensitivity and brain function regardless of whether body fat percentage actually changes, summarized as figure booty equals figure brain.

"The simple act of exercising, the simple act of emptying the tank improves ****. So whether your body fat percentage changes or not, the stronger yo are, the better your metabolism, the better your brain function is going to be. Figure booty, figure brain."

Anabolic resistance can be overcome with higher protein dosing

The guest describes how aging reduces the efficiency of amino acid sensing in muscle, a phenomenon called anabolic resistance, but that this can be overcome by dosing higher on protein, especially when combined with physical activity.

"anabolic resistance, the ability to sense amino acids, the efficiency of that changes. That can be overcome by dosing higher on ****"