Bone Tissue

Living mineral

How does the bone Tissue work?

Living tissue constantly rebuilt: the whole adult skeleton is replaced roughly every 10 years. It stores 99% of the body's calcium.

Remodeling

Osteoclasts dissolve old bone; osteoblasts lay down new collagen and mineral.

Peak bone mass

Reached around age 30. Weight-bearing exercise, calcium, vitamin D and protein help build and keep it.

Marrow

Red marrow inside bones makes blood cells.

Evidence & sources

• Weight-bearing and resistance exercise help maintain bone density. Evidence: strong. Known: Supported by trials and expert consensus. Unknown: Optimal type and dose for each age group. Source: NIH Osteoporosis and Related Bone Diseases National Resource Center, Exercise for Your Bone Health (Current revision).

Connected topics

• Calcium
• Vitamin D
• Phosphorus
• Vitamin K
• Protein
• Blood
• Strength Training
• Walking

Try it in your browser

General education only, not medical advice. Drafted Oct 2026 · pending qualified expert review.