The Importance of Smell Training for Cognitive Performance

Many people underestimate the power of our sense of smell. However, recent research has shown a strong link between our ability to smell and our cognitive performance. Studies have indicated that individuals with a poor sense of smell tend to perform worse in cognitive assessments. Furthermore, olfactory dysfunction has been associated with over 100 conditions, including neurodegenerative diseases like ALS, Parkinson’s, Alzheimer’s, and age-related cognitive decline.

While some olfactory impairment may be due to neurological damage, emerging studies suggest that the loss of smell could actually contribute to the development of certain conditions. Failing a simple sniff test could even impact our overall lifespan, as seen in the aftermath of the COVID-19 pandemic where many individuals experienced a loss of smell.

Neurobiologist Michael Leon from the University of California, Irvine, warns that by middle age, one’s olfactory ability can predict overall mortality. This alarming evidence has spurred a wave of interest in “smell training” to revive our often neglected sense of smell and potentially enhance cognitive function.

Smell training involves using various scents, such as lemon, eucalyptus, rose, and clove, to stimulate the olfactory system. Research and anecdotal evidence suggest that regular smell training can indeed improve our sense of smell and potentially boost cognitive performance.