In chemistry the word is one repeated use that is pH value. We often measure pH value in chemistry for many purposes. But this pH value is not only for science experiment, it is also use in our day to day life.   The pH stands for “potenz” which means power in German language. The pH scale is used to measure the hydrogen ion concentration in a solution. All living organism have pH value, our human body works within the pH range of 7.0 to 7.8. In case the pH range is change in our body, the consequence affects our body system. Suppose our mouth pH range is lower than 5.5, tooth enamel will decay. In case pH value range of human body or human blood is change, it will definitely cause some diseases.


The pH value is 7 – neutral

The pH value is less than 7 – acid

The pH value is greater than 7 – base

When the pH paper is change red litmus to blue that is base.
When the pH paper is change blue litmus to red that is acid.

If human body pH level 6.9 it becomes prone to some viral infection like cold or cough.

If human body pH level 5.5 may be cancer cells thrive inside the body.

Human body stomach fluid level 2.0 is must for digestion of food.

Human blood range 7.35-7.45, if any increase or decrease in this value it will leads some diseases.