What is one of the main causes of osteoarthritis?

One of the main causes of osteoarthritis is general wear and tear with age. As individuals age, the cartilage that cushions the joints begins to deteriorate due to the continuous stress and strain from daily activities. This degeneration reduces the joint's ability to absorb shock, leading to pain, stiffness, and inflammation. Over time, the surfaces of the bones may also become exposed, which can further exacerbate discomfort and restrict movement. This natural aging process significantly contributes to the development of osteoarthritis, making it a common ailment among older adults.

In contrast, while genetic factors can play a role in predisposing individuals to certain joint problems, and lack of exercise may impact overall joint health, they are not considered primary causes of osteoarthritis. Excessive calcium intake is generally unrelated to this condition, as osteoarthritis primarily involves cartilage breakdown rather than issues related to calcium balance in the body.