Answer:
Osteoporosis & Osteoarthritis
Step-by-step explanation:
Osteoporosis: a bone disease that develops when bone mineral density and bone mass decreases, or when the quality or structure of bone changes.
Osteoarthritis: the most common form of arthritis. Some people call it degenerative joint disease or “wear and tear” arthritis. It occurs most frequently in the hands, hips, and knees. With OA, the cartilage within a joint begins to break down and the underlying bone begins to change.