People respond to the sense of smell on an emotional level more strongly than any other sense a single aroma can trigger forgotten memories the limbic system is the area of the brain associated with smell and memory the olfactory nerves are located within the nasal cavity and respond to particular aromas this information is sent to the limbic system which connects with another part of the brain hypothalamus and pituitary gland which governs the hormonal systems these aromas trigger a vari