Midfoot arthritis occurs when the cartilage between the bones of the middle of the foot wears away over time. As a result, bone on bone contact takes place, which often results in discomfort, ...

Goody, an 18-year-old reticulated giraffe at the Sacramento Zoo who suffers with arthritis, receives an X-ray. Goody wears a boot to help her walk and a Fitbit for staff to monitor her activity.

If you wake up with tight, painful ankles or feet, that's a sign that your arches are falling — and you may have flat feet.