A normal body pH, specifically blood pH, ranges from 7.35 to 7.45, with an average of 7.40. This slightly alkaline range is crucial for optimal bodily functions.
Why This Range?
Maintaining this narrow pH range is vital because it supports essential biological processes, most notably blood oxygenation. Deviation outside this range can lead to serious health consequences. A pH below 7.35 indicates acidosis, while a pH above 7.45 signifies alkalosis. Both conditions require medical attention.
Understanding pH
pH measures how acidic or alkaline (basic) a substance is. A pH of 7.0 is neutral. Values below 7 are acidic, and values above 7 are alkaline. The human body employs sophisticated mechanisms to tightly regulate its pH, preventing significant fluctuations.
Different Body Fluids
While blood pH is typically discussed, it's important to note that the pH of other bodily fluids can vary. For instance, the pH of stomach acid is significantly lower than blood pH because the stomach requires a highly acidic environment for digestion.
- Blood pH: 7.35 - 7.45
- Stomach Acid: Highly acidic (much lower than 7.35)
This slightly alkaline pH of the blood is essential for optimal function of various systems.
