It turns out the standard advice to stay off a broken leg bone for at least six weeks is based less on scientific evidence and more on cultural caution—physicians like to play it safe.

As you grow older, maintaining strong and healthy bones becomes increasingly important ... Lift your right leg to the side, ...

The well-preserved bone tools, measuring up to around 16 inches, were likely made by breaking off the thick ends of leg bones and using a stone to knock off flakes from the remaining bone shaft.

PRESENTER:'Our skeleton has over 200 bones from the largest - our leg bone, or our femur, to the smallest - the bones in our ears. PRESENTER:'Bones are made of calcium and other minerals.