Every cell starts from a fertilized ovum.
During successive cellular divisions, in a process called differentiation, the environment surrounding a cell will shape and form the path that the cell will follow. At birth, potential athletes growing up in America have unlimited opportunities. Environment will nurture, shape and determine the end result. Practice, persistence, superior mental effort, and stamina are each hugely important. Athletes must be incredibly smart and mentally alert - as they have less than a moment to take action, reshape and change destiny that only they can do so well.