Did you know that your sense of smell brings back the most vivid memories?

This is because The olfactory bulb has direct connections to the amygdala and hippocampus, which are heavily involved in memory and emotion. These three structures—the olfactory bulb, the amygdala, and the hippocampus—form part of the limbic system, a ring of phylogenetically primitive cortex that is the seat of memory, emotion, and motivation.