If, as a child, one experiences the smell of their mother’s freshly baked cookies, they will come to associate the concept of “home” with the smell. Thinking of home can lead to a flood of chemical activities in the brain causing the feeling of nostalgia. Because of this, the smell of freshly baked cookies becomes a stimulus for the condition of experiencing nostalgia. Many real estate agents use this knowledge to increase the likelihood that a potential home buyer will feel attached to a property, increasing their chances of making a sale.