It may seem like a ridiculous question but odours may have a far more important role in life than previously believed. Scientists have found that the heart, lungs and other cells in the body may have the same receptors for sensing odours as the nose.
In the nose, these receptors sense substances called odourants and translate them into an aroma that we interpret as pleasing or not pleasing in the brain. Surprisingly, there is growing evidence that other non-olfactory organs have these receptors.
Once odour components are inside the body, it is unclear whether they are functioning in the same way that they do in the nose. However, Schieberle and his team of researchers have discovered that blood cells are attracted to odourant molecules and will move towards them as a result. Further research is necessary to explain the possible use for these receptors in non-olfactory organs.