Question

why do we fell hunger

Answer 1

We feel hungry when our body needs more energy (in the form of glucose) or nutrients. These are the materials that our body uses to function, powering its many chemical reactions, and building new cells. To make our bodies keep working, we have to continually be digesting food.

Answer 2

Wen energy gets used up by our body.. we need more energy to do our cellular processes.(atp is required) .. for this food is necessary.. thus we feel hungry