why are bones so strong
Bone is made from calcium and phosphorus. To keep bones healthy and strong; dairy products is needed in a person's diet. How bones maintains its strength and flexibility is that every 7 years a bone replaces all of its cells, this makes bones adapt to day to day events such as running.the trick is two sets of cells-one is always desolving your bones, and the second builds up every micro break). For weight bone is one of the strongest materials on earth, super light, flexible and strong, they are chambers of hollow walls allowing them to bend.