Here someone from the medical field who understands what it takes to stay alive
"If you really want to understand how life came into existence you must first understand how easily it can become non-existent. Just as a mechanic knows that there are many different ways a car can "die," so too every physician knows that there are many different pathways to death. Theories about life that only describe where the different parts may have come from, or even how they may have come together to perform a specific function, as difficult as that may be, are not good enough.
For medical science knows that when the body has allowed the rules of physics and chemistry to take over, having lost control and not being able to maintain the right level of any one chemical or vital function, then the consequence is death."
http://www.evolutionnews.org/2015/02/how_the_body_wo093941.html
A river doesn't have to control water in order to remain a river.