The world is changing every moment.

The world is changing every moment.
think about our body . Its chaning skin every moment. It keeps on shedding old cells and creates new ones every moment. I read someshere that the entire skin is changed in seven days. The heart changes blood in every pump. It goes on doing this till our death entire life. our hair also keep on changing.
The environment surrounding our body also changes every moment. At each breath there is new air around us and inside our body.
Are these changes follow any systematic design of change.
What makes them change.
Is there any way we can find the system of change. can we convert this into a formula with the following factors.
activator of change
the amount of change.
the other factors involving and motivating the change.
the subject matter of change.
the changed subject.