Climbing stairs looks like a simple everyday activity, but it asks your knees to bend, stabilize your body and handle considerably more load than normal walking. That is why some people feel perfectly fine while walking on a flat surface but suddenly notice pain, pressure or weakness when going upstairs. The cause isn't always obvious. Sometimes the pain comes from the kneecap, muscles around the joint or an old injury rather than the knee joint itself. Here are six possible

Knee osteoarthritis is one of the most common causes of chronic joint pain, stiffness, and reduced mobility, especially among older adults and people who are overweight. While exercise, weight management, and medications remain the foundation of treatment, emerging research suggests that increasing daily fibre intake—including through fibre supplements when needed—may also help reduce inflammation and improve joint health. Fibre supports a healthier gut microbiome, helps main