Imagine you are eating something hard like a green guava. What kind of changes take place in it from the time you bite a piece and put it in your mouth to when you *** it? Think what does the saliva in your month do?
When I bite a piece of green guava, it is hard and may even taste a bit bitter. However, after chewing it properly, it becomes soft and sweet. Saliva makes the food soft and also helps in its digestion.
