Name a potential risk factor for developing osteoarthritis.

The correct answer identifies age and obesity as significant risk factors for developing osteoarthritis. Osteoarthritis is a degenerative joint disease characterized by the breakdown of cartilage, and these two factors contribute notably to its prevalence.

As individuals age, the cumulative wear and tear on the joints increases, leading to a higher likelihood of cartilage degeneration. Additionally, age-related changes in the body's ability to repair and regenerate cartilage also play a role in the development of osteoarthritis.

Obesity further exacerbates the risk because the excess weight places additional stress on weight-bearing joints, such as the knees and hips. This mechanical load not only contributes to the wear of cartilage but also triggers inflammatory processes that aggravate joint degeneration.

In contrast, high levels of physical activity can be beneficial when done in moderation, promoting joint health and maintaining muscle strength. A healthy diet is associated with a lower risk of obesity and can provide nutrients that support cartilage health. While strong genetic predisposition may play a role in some cases, it is not as universally recognized as the combination of age and obesity in contributing to the development of osteoarthritis.