Have you ever thought about the incredible design that is built into every bone in your body? No chemist or engineer
has ever been able to develop a material as well-suited for the body's needs as bone. The arrangement of bone cells forms
the lightest structure made of the least material to support the body's weight. Our bones make up only 1/5 of our body weight
yet they support the entire structure.
As we grow, our bones grow with us. Inside our bones is a red blood cell factory which manufactures a trillion
new blood cells per day. No material known to man can replace bones. Wood could not stand the compressive forces bone must
take. Steel is too heavy being three times the weight of bone. Aluminum isn't strong enough to stand the flexing stress put
on the bones.
The average human walks 65,000 miles in his lifetime--more than 2 times around the world. A soccer player subjects
the 26 bones in his feet to a cumulative force of over 1,000 tons per foot. Our bones allow us to be what we are. Without
bones we would scrunch along like a worm. Our freedom of movement and ability to function, and to manipulate our environment
is all due to the marvelous frame into which our bodies are built.