*Simple Fragrance Method Boosts Cognitive Capacity by 226%*

"the olfactory sense has the special privilege of being directly connected to the brain’s memory circuits,” said Michael Yassa, professor and James L. McGaugh Chair in the Neurobiology of Learning & Memory.

“All the other senses are routed first through the thalamus."

https://scitechdaily.com/a-whiff-of-genius-simple-fragrance-method-boosts-cognitive-capacity-by-226/