The esophageal pH test is an outpatient procedure performed to measure the pH or amount of acid that flows into the esophagus from the stomach during a 24-hour period. The procedure is commonly used ...

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 ...

Your skin tends to have a naturally acidic pH depending on the areas of your body. Factors like the environment and your skin care routine can affect your skin’s pH level. Learn how to keep a balanced ...