06/29/2025
A severely obese person's skeleton, although structurally similar to that of someone with average weight, must endure much greater physical stress due to the added body mass. Our bones and joints are designed to support a specific range of weight. When that range is exceeded, especially over long periods, the body experiences increased mechanical stress—a term used to describe the physical force exerted on joints, bones, and muscles during movement or while bearing weight.
For example, medical studies have shown that each additional pound of body weight adds approximately four pounds of pressure on the knees. This excessive strain can accelerate joint wear and tear, particularly in the hips, knees, and lower back, increasing the risk of conditions like osteoarthritis, chronic pain, and reduced mobility. Even though bones may adapt slightly by becoming denser, this adaptation isn't always beneficial—it can lead to brittle or uneven bone growth over time.
Obesity doesn’t just affect metabolic health; it also creates a constant burden on the skeletal system, potentially leading to long-term orthopedic issues. This is why maintaining a healthy weight is crucial not only for heart and metabolic health but also for your bones and joints.