The sense of smell is a strong sense, Smell is the only one of the five senses whose messages go directly to the brain without intermediate processing. The humans are one hundred times as likely to remember something that smells that something you see. The researches has shown that people remember 35% of what they smell, compared with only 5% of what they see, 2% of what they hear and 1% of what they touch ...

More Information, here ...