MUSCLE PHYSIOLOGY

Detailed explanation-1: -The sensation of hunger activates the CB1 receptors, which then activate the olfactory bulb and cortex. So it is this brain mechanism that increases our sensitivity to smell when we are hungry, which in turn increases our craving for food .

Detailed explanation-2: -you when food gets cooked it releases some aromatic gases into the air the molecules of these gases spread and mix with air molecules. when this air reaches our nose we get the smell of food. this process of spreading and mixing of a substance with another substance is called diffusion.

Detailed explanation-3: -Scientists report that functional olfactory receptors, the sensors that detect odors in the nose, are also present in human taste cells found on the tongue.