Small tunnels in the spongy (trabecular) part of bone have been known for decades, but their role has remained unclear.

"Bones are pulled by muscles and remodeled."Knowing this phrase might change the way you look at your body a little."My legs ...

It's no coincidence that our bodies feel a little creakier as we age. The trillions of cells that make up our skeleton age too, and some change in ways that weaken the very structure of our bones.

How many bones are in the human body? Your skeleton is with you all the time, providing you structure and protection. But what do you actually know about your bones? There's something sitting inside ...