In fact, anytime we have a substantial change in PH inside our body, be it in our cells, in our blood, or in any system in our body that can cause harm to the different types of biological molecules by disrupting their molecular structure. And this includes not only DNA molecules, but also the different types of proteins and enzymes that are used by our cells and by our body. So what that means is for our body and cells to actually function effectively and efficiently, there must be a system in place that allows our body to regulate and prevent these drastic changes in PH from actually happening in the first place. The question is how? Because inside our body, we have many different types of acidbased reactions take place. So within cells and outside of cells and in our blood, we continually have fluctuations in hydrogen ion concentrations.