If your knees, hips, shoulders, or other joints seem to hurt more than they used to, you're not alone. Many adults begin noticing more stiffness, aching, or reduced mobility as they get older. You may feel fine when sitting but experience discomfort when walking, climbing stairs, getting out of bed, or standing after sitting for a long time. But getting older does not automatically mean you have to accept constant joint pain. Joint discomfort can develop for many different re