So for instance, the human body spends a good amount of energy to keep the fluid environment at a specific PH in order to ensure that different enzymes basically function effectively and properly. Now, the enzymes in our blood, for example, require a PH of about 7.4. And if the PH fluctuates even a small amount the enzymes will basically lose their functionality and this can be a very deadly scenario. Now, another case is Aristomic and small intestine. So Aristomic, unlike the blood, actually functions or Aristomic contains a relative acidic environment. And this is because a lot of our protein enzymes, for example Pepsin found in the stomach function at a low PH.