Of all the senses, essential oils affect your sense of smell the most. In true science-guy style, let’s dive a little deeper and find out if the nose really knows.
According to a study published by the National Center for Biotechnology Information, the sense of smell is one of the first senses humans developed. From the beginning, humans have used their olfactory sense—science’s fancy way of saying sense of smell—to identify food, potential mating partners, dangers, enemies, and more. For most living creatures, smell is a key way we interact with our environment.
So how many receptors are dedicated to the olfactory sense? We thought you’d never ask. You’ll find a whopping 100 million or more receptors packed into an area about 2.5 square centimeters! No wonder essential oils are crazy good at stirring certain emotions or specific memories—you have all those olfactory receptors just waiting to send signals to your brain!