Describe Wolff’s Law.

Wolff's Law is a theory developed by the German anatomist and surgeon Julius Wolff in the 19th century. According to this law, bone in a healthy person or animal will adapt to the loads under which it is placed. If loading on a particular bone increases, the bone will remodel itself over time to become stronger to resist that sort of loading. The internal architecture of the trabeculae, as well as the bone's external, overall structure, will change. This law is also applicable in reverse, meaning if the loading on a bone decreases, the bone will become weaker due to turnover, it is less metabolically costly to maintain and there is no stimulus for continued remodeling that is required to maintain bone mass.