The connection between scent and memory is powerful. When we smell a particular scent, it can trigger memories and emotions that are associated with that smell. This phenomenon is attributed to our anatomy - our olfactory bulb, which processes scent information, is directly connected to the amygdala and hippocampus, the regions of the brain responsible for emotional and memory processing.
Experts believe that memories linked with scents tend to be older, and not often reminisced on which is why when that trigger occurs the recollection is quite vivid - often the sensation is so strong but it takes a moment to link the associated memory. Smells have a stronger link to memory and emotion than any of the other senses. This is why certain scents, such as the smell of baking cookies or a loved one's perfume, can instantly transport us back to a specific time or place and evoke powerful emotions and memories.
One way that people have used scent to enhance memory is through the use of incense. Incense has been used in religious and spiritual practices for thousands of years, and many people believe that certain scents have the ability to calm the mind, improve focus, and enhance memory.
