Mark Hyman, MD

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What if your muscle mass is the single most important predictor of how long you will live?

For decades, we viewed muscle primarily through the lens of aesthetics or athletics. But the science has shifted. We now understand that muscle is a sophisticated endocrine organ that interacts with every system in your body.

When you challenge your muscles through resistance training, they release myokines—small proteins that reduce inflammation, improve insulin sensitivity, and even support brain health by cross-talking with your neurons.

On the flip side, the age-related loss of muscle, known as sarcopenia, is a primary driver of metabolic decline, frailty, and a weakened immune system.

The good news is that your biology is incredibly responsive. You can build functional muscle at any age, whether you are 25 or 85. It starts with two things: consistent resistance exercise and adequate protein intake to provide the building blocks for repair.

That's why I wrote my latest guide on Functional Strength.

I've broken down the exact movements, timing, and nutritional strategies I use to maintain peak physical function and metabolic health.

No gym membership required. No complicated equipment. Just a clear roadmap to a stronger, more resilient you.

Download the guide here: https://lnkd.in/strength-guide

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