Synesthesia means sensation and together. This happens when you stimulate one sense and it automatically and uncontrolled makes a different sense to react on that stimulation too. For very few people, smells are stated to activate coexisting visual occurrence. There are two ways smell can be sensed, at the nose, orthonasally, and through the back of the throat as a part of flavor, retronasally. Typically, people do not take into account that smell is a part of flavor perception (Rozin, 1982: as cited in: Russell, Stevenson, & Rich, 2015), which makes it easier to examine what role the type of inducer has on the sensation. Older research has argued that synesthesia used little brain energy, but newer research has argued that it is much more