This is what the skeleton looks like inside the body of a person with obesity

Por Sebastián Jerez
24 July, 2026

Your bones do not change shape when you gain weight. But what they carry does. 📊

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Orthopedic specialists calculate it this way: for every extra pound on the body, the knees receive about four pounds of additional pressure with each step, and even more when climbing stairs. That means 50 extra pounds can turn into 200 pounds of force hitting the knees with every stride. Hips, ankles, and the lower spine carry that same invisible weight.

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Over the years, cartilage wears down faster and the risk of needing a knee replacement grows. Extra abdominal weight also shifts the center of gravity forward, straining the lower back and changing the way you walk. Even fatty tissue releases inflammatory signals that accelerate joint deterioration. Same skeleton, much more silent load. 🩻

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