Scents and memories are closely related because the sense of smell is closely linked to the part of the brain responsible for processing memories, the hippocampus. When we experience a new scent, the molecules of the scent travel through the nose and bind to receptors in the olfactory bulb, which is connected to the hippocampus. This creates a neural pathway between the scent and the memory, allowing us to associate that scent with a particular memory or emotion. This is why the scent of a candle can take us back to special moments in time.
Studies have also shown that certain scents can evoke specific memories or emotions. For example, the smell of vanilla may remind someone of baking with their grandmother, or the smell of pine trees may remind someone of a Christmas from their childhood. Additionally, certain scents can have a calming or uplifting effect, which is why they are often used in aromatherapy.
The sense of smell and memory are so closely connected, and certain scents can evoke specific memories or emotions, this is why the use of scents in different situations can be very effective.