Just one delivery of estrogen to a fracture can speed up healing in postmenopausal mice, researchers have discovered.

Scientists thought bone healing was the domain of skeletal stem cells, but another kind of cell steps up after an injury, research in mice shows.

An abundance of the ApoE protein, also associated with Alzheimer's and heart disease, may explain why older people have more trouble healing broken bones.

Kids who play just one sport tend to practice harder and more often. That may sound like a good way to succeed, but it can put them at risk for injury.

How hard your foot hits the pavement isn't the only factor that can lead to stress fractures. Wearable sensors don't account for the true cause.