Saliva that is properly pH balanced (6.2 to 7.6) helps maintain a healthy mouth and protect your teeth. The acronym pH stands for potential hydrogen. It’s used to describe the chemical acidity level ...

A urine pH test checks the acidity or alkalinity of your urine. High or low levels can indicate various medical problems. Depending on the results, you can make lifestyle changes and get the proper ...

The pH of blood refers to how acidic it is. Changes to blood pH can signal underlying medical issues, including metabolic acidosis, respiratory acidosis, metabolic alkalosis, and respiratory alkalosis ...