ability to recognize odors is closely connected to areas of the brain involved in memory and learning.
Researchers have found that these regions may be affected early in Alzheimer’s disease, which can make it harder for some individuals to correctly identify familiar smells before more noticeable memory problems develop.
For this reason, changes in the sense of smell have become an area of growing interest in Alzheimer’s research.
Researchers have also investigated whether a simple smell-identification test could help identify people who may be at greater risk of future cognitive
