The nose remains our favorite and only olfactory organ. Olfactory receptors do exist throughout the body, but they have nothing to do with “smelling”, rather performing many other important tasks. They react to fragrances that enter the blood in high concentrations through breathing, contact with the skin, or ingestion, and are distributed from there throughout the body to the brain. Added to this are the many fragrances produced by microorganisms on and in our body, such as on the skin or in the intestine. Sweat and “fart” smells give us an impression of this.