If we look for evidence of creation by God rather than chance events, we must acknowledge the “engineering” of the human body that allows us to exist. And every breath we take is an example.
That first gasp for air at birth is the beginning of a process that can continue, uninterrupted, for a lifetime. It occurs without conscious thought, adapting as needed for sleep, physical exertion, and any number of changing conditions.
The fact that a human being can exist and function for up to 100 years (or more) is a miracle in itself. When we break it down, we can recognize that our existence is a combination of miracles that defy explanation.
Oxygen is critical to the continuing function of the human body, and the lungs are the mechanism that provides that supply of oxygen. Each breath triggers an exchange of oxygen and carbon dioxide, a process that effortlessly swaps the waste product (carbon dioxide) for the fuel (oxygen) that keeps the life engine humming.
Science has been able to identify most of the mechanics of the gas exchange we call breathing. Science tells us the framework of the lungs and the point at which the bloodstream gives up the carbon dioxide and absorbs the oxygen. The end of the journey for each breath are the alveoli, microscopic sacs surrounded by the finest mesh of blood capillaries where the gas exchange takes place.
While science may be capable of describing the structure and mechanics of breathing, what may be more difficult to explain is the “why.”
Once again, we are confronted with the issue that the complexity of the functioning of the human body seems to be far beyond what we could expect from a chance combination of elements. Even if we accept the probability of evolution, it becomes extremely difficult to believe that such a complex system would come into existence without some intelligent coordination.
It becomes even more miraculous when we realize that the blueprints for the amazing human body are somehow contained in that zygote that is created at the moment of conception.
Perhaps every breath we take is a silent praise of the Creator.