Bones can be tested for density. When such test are
                 done, a wide range of densities can be found, for
                               example, athletes have denser bones than
                              non-athletes. There is a link between bone
                                density and exercise. If we are regular
                                  runners, or sportspeople, our bones will be
                                   denser than those who sit at a desk day
                                     after day.
                                      Patients who lie in bed for weeks lose a
                                   lot of calcium, but this is quickly replaced
                              as soon as the patient is mobile again.
                          Astronauts have shown noticeable bone density
            reduction, due to their lack of exercise, weightlessness, and neglect of a suitable diet.
              A bone law states: "The form of the bone being given,
             the bone elements place or displace themselves in the direction of the functional pressure and increase or decrease their mass to reflect the amount of functional pressure."
              What this law means is that bones have a
              pre-programmed shape ("The form of the bone being given"), and that that shape will be altered in relation of the work the bone has to do.
Jesus, the Creator of our body, said: "Which of you with taking thought can add to his stature one cubit?" Luke 12:25

By some complex, mysterious process, bones are predetermined to be the shapes they are, and they maintain their shapes from the time they form to the time they die.
© 2006 ChristArt, Inc.